Kullervo, Crimson Renegade

First strike, Haste

At the end of your combat phase, put Bane counters on Kullervo and creatures your opponent controls equal to combat damage dealt to it.

{t}: Remove Bane counters from Kullervo equal to
the number of other creatures with Bane counters, then deal damage to creatures equal to the amount of Bane counters on it. Remove all Bane counters.