Runadi, Behemoth Caller

Legendary Creature — Cat Shaman {2}{G} 1/3

Whenever you cast a creature spell with mana value 5 or greater, that creature enters with X additional +1/+1 counters on it, where X is its mana value minus 4. Creatures you control with three or more +1/+1 counters on them have haste. {T}: Add {G}.