Emerald Nightmares—The Four Fallen Dragons: how to beat

A guide to the whole place: waves and bosses in order. Numbers come from the game’s data; loot is in the item atlas and on the Emerald Nightmares—The Four Fallen Dragons page.

In short

• World boss · levels 60 · bosses: 4
• Party: 5 heroes — tank, healer, 3 damage dealers.
• Recommended item level: 220, on heroic — 232. It is advice only: enemies don’t change.
• Heroic: bosses get ×1.3 damage and ×0.85 Health over normal (each on its own page); the whole-party hit ×1.3.
• Bosses with a whole-party hit: 4 of 4. Every boss has its own page: abilities, turn-by-turn rhythm, roles.

Waves between bosses

• Before each boss there is a wave of 1–3 enemies of one kind from the list below; the wave’s level matches the next boss.
• Taunt holds the whole wave at once — the tank presses it before the first enemy turn. Damage dealers kill one enemy after another: each kill removes its hits.
• A wave only hits the tank: the biggest takes up to 17% of their Health per turn. Healing the tank is enough; shields and big heals are for the bosses.

Bosses in order

1. Ysondre, Nightmare Prophetess

Level 60, final boss. In detail — Ysondre, Nightmare Prophetess: how to beat.

• “Nightmare Vision” — a whole-party hit on boss turns 3, 6, 9…: up to 885 each (heroic — up to 885). A warning shows on the portrait the turn before.
• The tank loses 30% of their Health per turn on average (heroic 39%), the others 13%: heal the tank every turn.
• Summons adds (“Call of the Nightmare”) — damage dealers kill them first.
• Boss Health: phases at 50% — keep big cards for the end.
• Taunt before boss turns 1, 4, 7…

2. Lethon, Devourer of Shadow-Souls

Level 60, final boss. In detail — Lethon, Devourer of Shadow-Souls: how to beat.

• “Shadow Hunger” — a whole-party hit on boss turns 3, 6, 9…: up to 885 each (heroic — up to 885). A warning shows on the portrait the turn before.
• The tank loses 35% of their Health per turn on average (heroic 46%), the others 13%: heal the tank every turn.
• Summons adds (“Nightmare Shadow”) — damage dealers kill them first.
• Boss Health: phases at 50% — keep big cards for the end.
• Taunt before boss turns 1, 4, 7…

3. Emeriss, Rot of the Emerald Woods

Level 60, final boss. In detail — Emeriss, Rot of the Emerald Woods: how to beat.

• “Wave of Rot” — a whole-party hit on boss turns 3, 6, 9…: up to 885 each (heroic — up to 885). A warning shows on the portrait the turn before.
• The tank loses 19% of their Health per turn on average (heroic 25%), the others 13%: heal the tank every turn.
• Boss Health: phases at 50% — keep big cards for the end.
• Taunt before boss turns 1, 4, 7…

4. Taerar, Shattered by Madness

Level 60, final boss. In detail — Taerar, Shattered by Madness: how to beat.

• “Howl of Madness” — a whole-party hit on boss turns 3, 6, 9…: up to 885 each (heroic — up to 885). A warning shows on the portrait the turn before.
• The tank loses 30% of their Health per turn on average (heroic 39%), the others 13%: heal the tank every turn.
• Boss Health: phases at 50% — keep big cards for the end.
• Taunt before boss turns 1, 4, 7…

General rules

How to read the guide (why a card can read more than a hero’s Health, hit and turn caps, shields), Taunt, the warning before a whole-party hit — How to beat: level 60 bosses.