Olenna, Queen of Thorns

Graft 2 (This creature enters the battlefield with two
+1/+1 counters on it. Whenever another creature
enters the battlefield, you may move a +1/+1 counter
from this creature onto it.)
Each creature you control with a counter on it
has hexproof and trample for as long as an
opponent is the monarch.
"All these kings would do far better if they put down
their swords and listened to their mothers."