Once a world day

When

Once per world day (every four real hours), between 21:00 and 00:00 world time; lasts 10 min.

Boss

Bell-wardenlevel 20

Guards

Sunken Knight×3 · level 19

Reward

2% of a level (up to 3,098 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The Drowned Bell rings under the tarn. The Bell-warden and his knights rise - silence him before the bell falls quiet on its own.”

When

Once per world day (every four real hours), between 02:00 and 06:00 world time; lasts 10 min.

Boss

Slagheartlevel 30

Guards

Mine Golem×3 · level 28

Reward

2% of a level (up to 6,971 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The furnace burns again under Mount Ashfall. Slagheart climbs out of the slag pool - put the guild's golem down before the fire dies on its own.”

When

Once per world day (every four real hours), between 00:00 and 02:00 world time; lasts 10 min.

Boss

Skreea the Harpy Matriarchlevel 40

Guards

Ridge Harpy×3 · level 38

Reward

2% of a level (up to 12,394 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The roost comes down. Skreea the harpy matriarch screams from the crag at the plateau's edge - silence her before the hour passes on its own.”

When

Once per world day (every four real hours), between 19:00 and 21:00 world time; lasts 10 min.

Boss

Ulfhedin the Wild Huntsmanlevel 50

Guards

Frost Wolf×3 · level 48

Reward

2% of a level (up to 19,365 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“A horn sounds from the barrow. Ulfhedin the Wild Huntsman rides out of the ship-setting with his wolves - bring him down before the night swallows him.”

When

Once per world day (every four real hours), between 12:00 and 14:00 world time; lasts 10 min.

Boss

Ignareth the Slag Wyrmlevel 60

Guards

Sand Wyrm×3 · level 58

Reward

2% of a level (up to 27,885 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The dunes split by the scorched caravan and Ignareth the Slag Wyrm breaches, trailing magma, its brood round it - kill it before it sinks again.”

When

Once per world day (every four real hours), between 06:00 and 08:00 world time; lasts 10 min.

Boss

Ossarion the Bone Colossuslevel 70

Guards

Necrophage×1 · level 68Bone Knight×2 · level 68

Reward

2% of a level (up to 37,955 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The Ossuary's door of bones bursts open and Ossarion the Bone Colossus walks out, every bone in the charnel house heaped into one giant - break it before the light comes.”

When

Once per world day (every four real hours), between 17:00 and 19:00 world time; lasts 10 min.

Boss

Skeleton Overlord (Boss)level 12

Guards

Skeleton Warrior×2 · level 10

Reward

2% of a level (up to 998 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The stones of the Old Barrow hum and the Skeleton Overlord climbs out with his guard - put him down before the dark comes.”

When

Once per world day (every four real hours), between 08:00 and 10:00 world time; lasts 10 min.

Boss

Starmawlevel 4

Guards

Timber Wolf×2 · level 3

Reward

2% of a level (up to 64 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“A star falls into the north-east meadow - and a wolf with starlight in its jaws climbs out of the crater. Starmaw will not start the fight; you will.”

When

Once per world day (every four real hours), between 14:00 and 16:00 world time; lasts 10 min.

Leader

Astral Colossuslevel 100

Guards

Titan Warden×2 · level 98

Reward

2% of a level (up to 75,918 XP) to every hero within 60 m of the spot where the leader falls

Announced

15 min, 5 min, 1 min before, to every player online

“The avenue's stones heave and an astral colossus rises between the columns of the titans, two wardens at its side - the city's guard is mustering. Bring the colossus down.”

When

Once per world day (every four real hours), between 16:00 and 17:00 world time; lasts 10 min.

Boss

Zhul'kar the Voidcallerlevel 80

Guards

Doom Herald×1 · level 78Void Acolyte×2 · level 78

Reward

2% of a level (up to 49,574 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The stones of the Broken Circle burn violet and Zhul'kar the Voidcaller steps out of the Rift with his acolytes - silence him before the Rift opens for good.”

When

Once per world day (every four real hours), between 10:00 and 11:00 world time; lasts 10 min.

Boss

Tharvok the Storm Wyrmlevel 90

Guards

Elder Wyvern×1 · level 88Peak Wyvern×1 · level 88

Reward

2% of a level (up to 62,742 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“Lightning splits the sky and Tharvok the Storm Wyrm lands in the Windswept Pass, its wyverns on the ridges - bring it down before the storm carries it off.”

When

Once per world day (every four real hours), between 11:00 and 12:00 world time; lasts 10 min.

Boss

Nyxara, the Eclipse Queenlevel 100

Guards

Starbound Knight×1 · level 98Eclipse Ranger×1 · level 98

Reward

2% of a level (up to 75,918 XP) to every hero within 60 m of the spot where the boss falls

Announced

15 min, 5 min, 1 min before, to every player online

“The sun goes black at noon and Nyxara, the Eclipse Queen, rises below the observatory with her cult - break her before the eclipse is whole.”

Only during Hallowtide (25 Oct – 8 Nov, UTC): The Hollow Harvester rises once per world day in each of these 5 zones, in the zone's own hours, and stays 10 minutes; every player online is warned 15, 5, 1 minutes ahead. When it falls, every hero within 60 m of the spot gets a share of a level in XP and 10 Hallow Candles.

While Hallowtide lasts the creatures carry Hallow Candles: an ordinary one now and then leaves 1, an elite often 2, and a champion 3, a boss 5 and a raid boss 15 every time – none from a creature 8 or more levels below you – and every hero credited with a kill gets their own, straight into the bag. When the Hollow Harvester falls at night, every hero within 60 m of the spot gets 10 more.

“Pumpkin-fire flares in the dark and the Hollow Harvester steps out of it, scythe first. Cut it down before the night is over.”

Every boss with an ability shows a ring or cone on the ground while it winds up – step out of it. A stun interrupts a boss's cast, even while it is unyielding. Bosses take half of every stun, root and slow; a stun or a root makes a boss unyielding for 8 s, and until then it shrugs off further stuns, roots and slows. A slow never makes it unyielding.

Boss	Ability	Shape	Wind-up	Damage	Every	Tip
Mal'garoth the Pit Lord	Hellfire Cleave	120° wedge 6 m long in front of it	1.3 s	×2.2	11 s	Mal'garoth hauls his blade back and cleaves a wide burning wedge in front of him. Step to his side or behind him.
Mal'garoth the Pit Lord	Pit Eruption · below 66% health	3.5 m ring under its target	1.6 s	×2.1	12 s	Mal'garoth points at you and the ground under your feet cracks open into the pit; fire bursts out a moment later. Step out of the ring.
Mal'garoth the Pit Lord	Abyssal Nova · below 33% health	7.5 m ring around it	2.2 s	×2.6	16 s	Below a third of his health Mal'garoth roars and the abyss pours out of him in a very wide ring - his slowest, heaviest cast. Get well clear while he gathers it.
Vorgrim the Storm King	Thunder Clap	6 m ring around it	1.6 s	×2.1	12 s	Vorgrim brings his hands together over his head and thunder rolls off him in a wide ring. Walk out of it before the clap.
Vorgrim the Storm King	Sky Lance · below 66% health	3.2 m ring under its target	1.4 s	×2.2	11 s	Vorgrim points his spear at you and a ring of storm light opens under your feet - the lightning falls into it. Step out before it strikes.
Vorgrim the Storm King	Skybreaker · below 33% health	60° wedge 10 m long in front of it	1.5 s	×2.6	15 s	Below a third of his health Vorgrim raises his hammer and brings it down in a long, narrow line of thunder in front of him. Step to the side - the line is long but thin.
Ashkarath the Nightmare Dragon	Nightmare Breath	60° wedge 9 m long in front of it	1.5 s	×2.2	11 s	Ashkarath rears its head and breathes a long cone of nightmare flame in front of it. Get out of the cone to the side - it reaches far.
Ashkarath the Nightmare Dragon	Tail Sweep · below 66% health	5.5 m ring around it	1.1 s	×1.8	10 s	Ashkarath coils and sweeps its tail round in a quick ring. Back off the moment the ring appears - it is fast.
Ashkarath the Nightmare Dragon	Dread Descent · below 33% health	4.5 m ring under its target	1.9 s	×2.5	15 s	Below a third of its health Ashkarath marks you from above: a wide ring of shadow opens under your feet and the dragon's weight falls into it. Run out of the shadow.
Aurelion, the Fallen Star	Falling Star	3.5 m ring under its target	1.6 s	×2.2	10 s	Aurelion points at you and a ring of starlight opens under your feet - a star falls into it. Step out of the light before it lands.
Aurelion, the Fallen Star	Solar Flare · below 66% health	90° wedge 8 m long in front of it	1.4 s	×2.3	12 s	Aurelion turns its face to you and a wedge of white fire flares in front of it. Step to its side.
Aurelion, the Fallen Star	Supernova · below 33% health	8 m ring around it	2.3 s	×2.7	16 s	Below a third of its health Aurelion draws the light of every star into itself and bursts in a huge ring. Run far out of the ring while it gathers.
Thornmaw, the Briar King	Briar Cleave	80° wedge 6.5 m long in front of it	1.4 s	×2.1	10 s	Thornmaw lowers its branching crown and sweeps the thorns across a wide arc in front. Step behind it while it lowers its head.
Thornmaw, the Briar King	Root Snare · below 66% health	3.5 m ring under any hero it can see	1.8 s	×2	12 s	Below two thirds of its health a ring of roots opens under a random hero. Leave the ring before the roots strike.
Thornmaw, the Briar King	Blackpine Wrath · below 33% health	7 m ring around it	2.2 s	×2.4	15 s	Below a third of its health Thornmaw's amber heart blazes and roots burst from the ground all around it. Run beyond the wide ring while it gathers its strength.
Mossback, the Ancient of the Mere	Snapping Lunge	50° wedge 7.5 m long in front of it	1.2 s	×2.2	10 s	Mossback draws its head into the shell, then the great beak shoots out in a long, narrow lunge. Step to its side.
Mossback, the Ancient of the Mere	Drowned Knell · below 66% health	3.6 m ring under any hero it can see	1.7 s	×2.1	12 s	The drowned bell tolls and a ring of black water opens under one of you - anyone in the party. Step out before the water closes.
Mossback, the Ancient of the Mere	Shell Quake · below 33% health	7 m ring around it	2.1 s	×2.5	15 s	Below a third of its health Mossback rears and drops its whole shell on the mud: a wide ring ripples out. Get well clear while it rears.
Glimmerclaw, Queen of the Deep Seam	Crusher Slam	100° wedge 6 m long in front of it	1.3 s	×2.3	10 s	Glimmerclaw raises her crusher claw and slams the wedge in front of her. Step behind her or to the side.
Glimmerclaw, Queen of the Deep Seam	Ore-Shard Rain · below 66% health	3.6 m ring under any hero it can see	1.6 s	×2.1	11 s	Crystals snap off the Queen's shell and rain on one of you: a ring of glittering shards marks the spot. Step out of it.
Glimmerclaw, Queen of the Deep Seam	Seam Collapse · below 33% health	7.5 m ring around it	2.2 s	×2.6	15 s	Below a third of her health Glimmerclaw drums the rock and the roof of the seam caves in round her - a very wide ring. Get far out of it.
Gorr and Morr, the Ettin	Menhir Smash	70° wedge 7 m long in front of it	1.4 s	×2.3	11 s	Gorr lifts the menhir over both heads and brings it down in a long wedge. Step to the side.
Gorr and Morr, the Ettin	Boulder Hurl · below 66% health	3.8 m ring under any hero it can see	1.8 s	×2.3	11 s	Morr tears a boulder out of the hill and throws it at one of you: its shadow grows on the ground. Run out of the shadow.
Gorr and Morr, the Ettin	Twin Roar · below 33% health	7 m ring around it	1.9 s	×2.5	15 s	Below a third of their health both heads roar at once and the ground shakes in a wide ring. Get clear while they draw breath.
Ulfmar, the Rime Mammoth	Tusk Sweep	140° wedge 6.5 m long in front of it	1.3 s	×2.2	10 s	Ulfmar lowers its head and sweeps its ice tusks round in a very wide arc in front of it. Get behind it.
Ulfmar, the Rime Mammoth	Avalanche Call · below 66% health	4.2 m ring under any hero it can see	2 s	×2.4	12 s	Ulfmar trumpets at the peaks and the snow comes down on one of you - a wide ring of falling snow. Run out of it.
Ulfmar, the Rime Mammoth	Rime Stampede · below 33% health	7.5 m ring around it	2 s	×2.6	15 s	Below a third of its health the mammoth rears and stamps; frost cracks out in a wide ring. Get well clear.
Zarrakh, the Sunscourge	Pincer Sweep	120° wedge 6 m long in front of it	1.2 s	×2.2	10 s	Zarrakh opens both pincers and sweeps the sand in front of it. Step behind it - the stinger is slower than the claws.
Zarrakh, the Sunscourge	Sunscourge Sting · below 66% health	3.4 m ring under any hero it can see	1.5 s	×2.5	11 s	The molten stinger arcs over Zarrakh's back and strikes where one of you stands: a ring of sunfire marks the spot. Step out of it.
Zarrakh, the Sunscourge	Solar Venom · below 33% health	7.5 m ring around it	2.2 s	×2.6	15 s	Below a third of its health the sun-disk on its back blazes and venomous fire bursts out round it in a wide ring. Run.
Gutmaw, the Stitched Abomination	Cleaver Chop	90° wedge 6 m long in front of it	1.3 s	×2.3	10 s	Gutmaw heaves the butcher's cleaver up and chops the wedge in front of him. Step to his side.
Gutmaw, the Stitched Abomination	Hook Chain · below 66% health	3.5 m ring under any hero it can see	1.5 s	×2.2	11 s	Gutmaw flings his chain of meat hooks at one of you; a ring marks where the hooks will bite. Step out of it.
Gutmaw, the Stitched Abomination	Bile Burst · below 33% health	7.5 m ring around it	2.1 s	×2.6	15 s	Below a third of his health Gutmaw's belly swells and bursts in a wide ring of grave bile. Get far out of the ring.
Vexaris, the Abyssal Hydra	Triple Strike	80° wedge 7 m long in front of it	1.3 s	×2.3	10 s	The Hydra's three heads rear and strike down together on the wedge before it. Get to its side.
Vexaris, the Abyssal Hydra	Void Spit · below 66% health	3.8 m ring under any hero it can see	1.6 s	×2.3	11 s	One of the heads spits a ball of void at one of you: a violet ring opens under you. Step out before it lands.
Vexaris, the Abyssal Hydra	Abyssal Coil · below 33% health	8 m ring around it	2.2 s	×2.7	15 s	Below a third of its health Vexaris coils and the void bursts out of the fissure round it in a huge ring. Run.
Skarnax, the Storm Roc	Thunder Wing	6.5 m ring around it	1.5 s	×2.1	11 s	Skarnax beats its great wings and a gale of lightning bursts out round it. Get out of the ring while its wings rise.
Skarnax, the Storm Roc	Storm Dive · below 66% health	4 m ring under any hero it can see	1.7 s	×2.4	11 s	The Roc shrieks and a ring of storm light opens under one of you - the lightning falls a moment later. Step out of it.
Skarnax, the Storm Roc	Tempest Shriek · below 33% health	55° wedge 11 m long in front of it	1.6 s	×2.7	14 s	Below a third of its health Skarnax shrieks a long, narrow line of thunder in front of it. Step to the side.
Oorath, the Star-Whale	Comet Call	4.2 m ring under any hero it can see	1.8 s	×2.3	10 s	Oorath turns one great eye on one of you and a comet falls into a ring of light under your feet. Step out of the light.
Oorath, the Star-Whale	Nebula Crash · below 66% health	70° wedge 10 m long in front of it	2 s	×2.6	13 s	The Star-Whale surges forward with all its weight and crashes down on a long wedge in front of it. Get to its side.
Oorath, the Star-Whale	Starsong · below 33% health	8 m ring around it	2.3 s	×2.7	15 s	Below a third of its health Oorath sings and a ring of starlight swells round it until it bursts. Get far out of the ring.
Ymrak, the Last Titan	Titan Slam	100° wedge 8 m long in front of it	1.5 s	×2.4	11 s	Ymrak raises the broken column and slams the wedge in front of him. Step to his side - the wedge is wide.
Ymrak, the Last Titan	Chain Lash · below 66% health	4 m ring under any hero it can see	1.6 s	×2.3	11 s	The Last Titan lashes his broken shackle chain at one of you; a ring marks where it will land. Step out of it.
Ymrak, the Last Titan	Ruinfall · below 33% health	8.5 m ring around it	2.4 s	×2.7	16 s	Below a third of his health Ymrak stamps and the old temple stones fall round him in a huge ring. Run far out of it.
Hexmother Sabra	Hex Nova	5 m ring around it	1.6 s	×2.2	12 s	A violet ring grows around the caster while she stands rooted; everyone still inside when it bursts takes a heavy hit. Step out of the ring.
Bell-warden	Bell Toll	4.5 m ring around it	1.8 s	×1.9	11 s	A slow, wide toll: the ring warns, then the peal hits everyone inside it. Walk out before the bell falls.
Warchief Grazk	War Stomp	4 m ring around it	1.4 s	×2	13 s	A quick, tight stamp of the terrace. Back off the moment the ring appears.
Slagheart	Slag Burst	5.5 m ring around it	1.9 s	×1.9	12 s	The furnace golem vents slag in a slow, wide burst. Leave the ring early - it is large.
Warlord Ugrash	Warlord's Cleave	110° wedge 5.5 m long in front of it	1.3 s	×2.2	12 s	Ugrash winds up his cleaver and cuts a wide wedge in front of him. Step to his side or behind him - the wedge is quick.
Skreea the Harpy Matriarch	Harpy Shriek	6 m ring around it	1.6 s	×1.8	12 s	The matriarch draws breath and shrieks: a wide ring around her. Get clear of her while she inhales.
Rimefang the Deep Wyrm	Glacial Quake	6.5 m ring around it	1.8 s	×2	13 s	Rimefang shakes the frozen lake; a wide ring of cracking ice grows under it. Walk off the ring before it bursts.
Jarl Hrimgar	Jarl's Frostfall	6.5 m ring around it	1.7 s	×2.1	13 s	The Jarl raises his axe over his head and frost gathers round him in a wide ring. Get well away before it bursts - it is larger than it looks.
Ulfhedin the Wild Huntsman	Hunter's Charge	60° wedge 7.5 m long in front of it	1.2 s	×2	11 s	The stag lowers its antlers and the Huntsman aims a long, narrow charge at you. Step to the side - the wedge is thin.
The Hollow Harvester	Harvest Reap	120° wedge 6 m long in front of it	1.3 s	×2	10 s	The Harvester draws its scythe far back and reaps everything in a wide arc before it. Step behind it, or out of the scythe's reach.
Roderic the Bandit King	Crown-splitter	150° wedge 4.5 m long in front of it	1.3 s	×2.1	12 s	Roderic hauls his greatsword back and sweeps nearly everything in front of him. The arc is short - step back out of it, or get behind him.
Morwen the Marsh Hag	Bog Grasp	3 m ring under its target	1.7 s	×2	11 s	Morwen points at you and the bog opens under your feet: a small ring that follows no one. Step out of it before the mud closes.
Skeleton Overlord (Boss)	Grave Call	5 m ring around it	1.6 s	×2	12 s	The Overlord raises his sceptre and the barrow's dead claw up in a ring round him. Get clear of the ring before they rise.
Starmaw	Star Howl	3.5 m ring around it	1.8 s	×1.5	12 s	Starmaw throws its head back and the star shard in its jaws flares: a small blue ring grows round it. Take a few steps back.
Kharzim the Ashen Sultan	Sunfall	3.5 m ring under its target	1.7 s	×2.1	11 s	Kharzim points at you and a circle of sunlight opens under your feet - a pillar of fire falls into it. Step out of the light before it lands.
Ignareth the Slag Wyrm	Magma Breach	6.5 m ring around it	1.8 s	×2	12 s	Ignareth dives and the dunes round it split in a wide ring of glowing cracks; the magma breaks through a moment later. Get well clear.
Vaelthar the Lich King	Soul Harvest	3.8 m ring under its target	1.7 s	×2.1	11 s	Vaelthar points his staff at you and a ring of violet light opens under your feet - the souls he keeps fall into it. Step out of the ring before they land.
Ossarion the Bone Colossus	Bone Quake	6.5 m ring around it	1.8 s	×2	12 s	Ossarion rears up and stamps; the ground round it heaves with bones in a wide ring. Get well clear before it comes down.
Moonhorn	Moonfall Stomp	5 m ring around it	1.9 s	×1.6	13 s	Moonhorn rears on its hind legs and moonlight gathers round it in a ring; when its hooves come down the light bursts. Step out of the ring while it rears.
Zhul'kar the Voidcaller	Void Rend	3.8 m ring under its target	1.7 s	×2.1	11 s	Zhul'kar points his staff at you and the air under your feet tears open in a violet ring - the void snaps shut a moment later. Step out of the ring.
Tharvok the Storm Wyrm	Tempest Wings	7 m ring around it	1.8 s	×2	12 s	Tharvok rears and beats its wings, and the storm whips round it in a wide ring of wind and lightning. Get well clear while its wings are up.
Nyxara, the Eclipse Queen	Umbral Fall	5 m ring under its target	2 s	×2.3	13 s	Nyxara raises her hand and the moon's shadow falls on you: a wide dark ring with a gold rim opens under your feet. Run out of the shadow before the light goes out.
Hrimdis the Winter Matron	Ice Tomb	3.4 m ring under its target	1.7 s	×2.1	11 s	Hrimdis points her staff at you and a ring of frost closes under your feet - a tomb of ice rises out of it a moment later. Step out of the ring.
Vulkhar the Cinder Smith	Molten Pour	100° wedge 6 m long in front of it	1.5 s	×2.3	12 s	Vulkhar heaves his hammer back and a wave of molten bronze pours out over the ground in front of him. Get behind him or out of the wedge before it lands.
Morvayne, the Drowned Abbess	Drowning Hymn	4.5 m ring around it	1.8 s	×2.2	12 s	Morvayne's hymn swells and the black water rises in a ring round her. Get out of the ring before it closes over you.
Ul'gorath, the Hungering Maw	Maw of the Deep	70° wedge 7 m long in front of it	1.6 s	×2.4	12 s	Ul'gorath rears up and its maw gapes: the floor in front of it splits into a long wedge of teeth. Step aside out of the wedge before the maw snaps down.
Vyrmathra the Brood Mother	Brood Lightning	3.8 m ring under its target	1.6 s	×2.3	11 s	Vyrmathra roars at the cave roof and a ring of pale light opens under you - the storm comes down through the rock a moment later. Step out of the ring.
Celestar, the Fallen Star's Heart	Core Flare	5.2 m ring around it	1.8 s	×2.4	12 s	The star in Celestar's chest flares white and a ring of fire opens round it. Get out of the ring before the core bursts.