Drowned Thrall

Vanishing 2 (This creature enters the battlefield with two time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
Whenever Drowned Thrall deals combat damage to a creature, put a stress counter on it.
Whenever Drowned thrall dies, creatures target player controls get -X/-X until end of turn, where X equals Drowned Thrall's toughness.