Elara, White Legion Commander

+2: Create a 2/1 white Knight creature token
+1: Put a basic Plains card into your hand
-3: Enchant target creature you control with Ench creat gets +X/+X, X= cards in hand
-4: Exile target creature. Its controller gains life equal to its power
-10: Destroy all lands. Create two 4/4 white Angel creature tokens with flying and vigilance