Gerathade, God Overlord

Whenever you put a +1/+1 counter on another creature, put a +1/+1 counter on Gerathade.

At the beginning of combat on your turn, creatures you control get +3/+0 until end of turn if any number of +1/+1 counters were placed on Gerathade. If that number was three or greater, creatures you control gain first strike until end of turn. If that number was six or greater, creatures you control gain double strike until end of turn.

"All will know to bow to me."