Irythill Dungeon Jailer

Hexproof
{3}{r}: Put a 0/-3 counter on enemy target
creature.
This counter can not be removed by any means
This counter can not kill creatures
Creatures gain Lifelink only if they inflict damage
to the creature with the counter on it.

The jailers were among the few survivors inhabiting
the Profaned Capital, later serving under
Pontiff Sulyvahn.