Vendigu Retaliator

First Strike
Whenever a source you don't control deals damage to you, put a +1/+1 counter on this creature.
At the beginning of your end step, remove all +1/+1 counters from Vendigu Retaliator.
"Her family butchered, her home razed. The Graad have no word for 'therapy,' but they do have six verbs meaning 'to eviscerate.'" --Ura Dell