Uriel, Light of God

+3: Put a 3/3 white Angel creature token with flying onto the battlefield for each additional mana spent to cast Uriel, Light of God.
-X: Up to X creatures you control get +3/+3 and flying, indestructible or double strike until the end of the turn.
-9: Exile all creatures. Uriel, Light of God becomes a 9/9 Angel creature with flying, indestructible and double strike that's still a planeswalker.