Talk:Cat of Charisma - Mellow/@comment-25378252-20181125171139

The "undercover" effect is effectively a persistent "dodge all attacks of enemies". You won't be damage by attacks, but can still take damage from effects such as Hellfire and Poison.

The condition to remove the undercover effect, "Damage is dealt on the enemy", includes dealing 1 damage against Enchanted Shield, Combo Shield etc. as well as direct damage from active skills.