Forgotten Ancient [Planechase]

Set: Planechase 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.