NIGHTMARE CORRIDOR

Astral Devourer (Illusory Mirage)

Ran 27 Jan 2026 to 13 Jul 2026.

Skills

Nova Detonation

The Astral Devourer starts with 100 points of Stability. For every 1s of battle, its Stability is reduced by 1 point. While its Stability remains above zero, the Astral Devourer takes 75% less damage and health loss. Within a single battle, the Astral Devourer can only lose a maximum of 18% of its max health from a single enemy hero's attacks.

Only damage effectively dealt to the Astral Devourer during battle will be counted.

Gravitational Surge

The Astral Devourer frequently summons Dead Stars on the battlefield. Only 5 Dead Stars can be present at a time. Dead Stars have extremely high health, but when summoned, their health percentage is only 30%. Dead Stars deal damage equal to 120% of Attack Rating to nearby enemy units. When a Dead Star dies and disappears for any reason, the Astral Devourer loses 1 point of Stability.

Stellar Decay

The Astral Devourer channels energy into a powerful wave, dispelling most debuffs on Dead Stars and dealing damage equal to 300% of its Attack Rating to all enemy units.

Dark Implosion

The Astral Devourer summons a massive Black Hole, engulfing the entire battlefield. The Black Hole then explodes, dealing damage equal to 100% of Attack Rating to all enemy units and instantly destroying summons.

Also in the corridor as Astral Devourer (2025).

Every Nightmare Corridor boss and its dates