Gruul Aristocrat

Whenever Gruul Aristocrat attacks, each other creature you control gets +X/+X until end of turn, where X is Gruul Aristocrat's power.
Whenever a creature you control deals combat damage to a player, put a +1/+1 counter on Gruul Aristocrat.
"We are the voice that unites the clans. Let them or our foes think less of us and they'll see our mettle."