Raid boss · marsh · Brute
Mossback, the Ancient of the Mere
Tier 3 · Hollow Mere – catalog level 30, met at level 20. A fight for three to five heroes; it returns 12–24 h after it falls. A hero 9 or more levels above it cannot hurt it. After 11 minutes of a fight it rages and hits four times as hard – and twice as hard again every minute after, up to 256 times. Its health is for four heroes and grows or shrinks 15% with every hero more or fewer fighting it (up to ten) – a hero counts once they have dealt 0.5% of the four heroes' health and stand no more than 8 levels below it. Regenerates 0.05% of its health every second while it lives. 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.
Where to find it
- Hollow Mere – level 20 · 1 spawn · notices you within 8 m, gives up 45 m from home
Ability: Snapping Lunge
every 10 sMossback draws its head into the shell, then the great beak shoots out in a long, narrow lunge. Step to its side.
1.2 s wind-up · 50° wedge 7.5 m long in front of it · ×2.2 damage · used within 6.5 m.
Ability: Drowned Knell
below 66% health · every 12 sThe drowned bell tolls and a ring of black water opens under one of you - anyone in the party. Step out before the water closes.
1.7 s wind-up · 3.6 m ring under any hero it can see · ×2.1 damage · used within 14 m.
Ability: Shell Quake
below 33% health · every 15 sBelow 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.
2.1 s wind-up · 7 m ring around it · ×2.5 damage · used within 7 m.
Phases
at 66% and 33% health- 66% – The drowned bell on Mossback's shell tolls under the water - bog leeches swarm out of the mud! (3 × Bog Leech, worth nothing, gone when the boss falls or resets)
- 33% – The dead willow on Mossback's back groans - mire lurkers crawl out of the reeds! (3 × Mire Lurker, worth nothing, gone when the boss falls or resets)
A new phase brings its own ability into the fight; the boss pauses a few seconds between two casts.
Strength
at level 20| Level | Health | Damage | Armour | Reach | Speed | XP |
|---|---|---|---|---|---|---|
| 20 | 257919 | 48 | 37 | 3 m | 3 m/s | 1538 |
Loot
at level 20500–1000 gold
Herb: 100% – Herb of Life 40%, Herb of Strength 20%, Herb of Fury 20% or Herb of Swiftness 20%; eaten as the pile is picked up.
Equipment of Tier 3 · Hollow Mere: 50% per roll, 4 rolls from 31 pieces, at the creature's level – grades Rare 56%, Epic 40%, Legendary 4%.
Set piece: 50% – Marsh Drowned Knight's, Marsh Bogstrider's, Marsh Hag-touched.
The whole pile goes to the party – or the hero – that dealt the most damage; every hero credited with the kill shares 10 times a world boss's experience by damage and earns 30 raid points, and each of their guilds gains 300 reputation.
Kill something 8+ levels below you and it drops a quarter of the gear, half the materials and gold, and no Tempering Stones or herbs.
