Halls of the Abyss

Defender, Shroud
Bound {b}{b}: Exile target creature under this dungeon to give Halls of the Abyss a -1/-1 counter. Return exiled creatures under this dungeon when it is defeated.
My soul hath been redeemed from the gall of bitterness and bonds of iniquity. I was in the darkest abyss.. - Mosiah 27:29