Proteus, The Great Maker

Indestructible, protection from colored spells.
Proteus, The Great Maker enters the battlefield with 10 +1/+1 counters on him.
{1}, {t}: Remove a +1/+1 counter from Proteus,
put a 3/3 colorless Celestial creature token with indestructible onto the battlefield.
When all +1/+1 counters are removed from
Proteus, exile him.