Citadel of Darkness

The Citadel of Darkness is not a difficult dungeon to pass, as the boss does not have any strong debuffs and damage, only applies Poisons. But there are his henchmen on both sides who impose unpleasant penalties.

The Citadel of Darkness dungeon doesn't open until Sunday.

In general, after watching a brief video review below, you will be able to understand the problems that arise, but there is nothing here that does not pass, just download the heroes and pass calmly.
Dark Boss skills.

The numerical values of the Boss's skills in the Citadel of Magic vary depending on the difficulty level.

Dark Harvest

Attack on all enemies. Casts two 5% Poisons for 3 turns. This penalty cannot be reflected.
Agony

All Poison penalties on enemies deal instant damage every 5 Turns
Strong immunity

Immune to Stun, Freeze, Sleep, Provocation, Non-Base Skill Block, Fear, True Fear, as well as health exchange, health equalization effects, and increased cooldown.