Deus Research Base — Full Dungeon Guide

The instance runs longer than the mob count suggests: skipping pulls rarely works because patrol density punishes split groups. The Soul Binder checkpoint mid-instance restores a limited number of consumables — plan your bar before entering, not after the first wipe.

Gelcos cycles ground AoE pools — stand between pools, not on the edges that look safe (they collapse). Nazmun's jump mechanic is optional: dodging it cleanly avoids a heavy frontal, and the stagger window right after the jump is the biggest burst opportunity in the whole instance.

Atiel fights a normal phase above 50% HP and switches to a harder phase below it — the first transition enrage checks your group DPS. Crossing 50% without burst available usually wipes the run. Strategy: bank your strongest cooldowns ahead of the 50% push and keep position discipline in phase 2, because the arena shrinks.