Balemurk Leech (DSK 84)

Creature — Leech • Mana cost: {1}{B} • Duskmourn: House of Horror • Common

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, each opponent loses 1 life.

Adapted to feed on dead flesh, it's not averse to making its own when no corpses are available.

Illustrated by John Tedrick.