Forgotten Ancient [Commander 2015]

Set: Commander 2015 Type: Creature — Elemental Rarity: Rare Cost: {3}{G} Whenever a player casts a spell, you may put a +1/+1 counter on Forgotten Ancient. At the beginning of your upkeep, you may move any number of +1/+1 counters from Forgotten Ancient onto other creatures. Its blood is life. Its body is growth.