Tiamat, Goddess of Evil

+10: Create a 10/10 Dragon token with Flying, Haste, and Vigilance
+5: Create a Nicol Bolas, Planeswalker token and 2 7/7 Dragon tokens with Flying, Vigilance and create 4 treasure tokens.
-6: Your opponent's health is now one, you gain 20 life, you are hexproof, and create a Nicol Bolas, Planeswalker token.