The Dungeon Beneath achievements

Reach Abaddon with Elder Gryx.

Have 10 Armor on a single unit.

Win a battle with only your hero left alive.

Acquire a Searing Sign.

Reach Abaddon with Taz'gyn.

Acquire Iliphar's Arbalest.

Deal 20 or more damage to a single unit with one attack.

Reach Abaddon in under 60 rounds.

Defeat Abaddon.

Reach Abaddon with Thoric of the Hammer.

Defeat The Mind Reaver.

Win a battle in the first round.