Alexos The Living Castle

+2: Create a 0/5 Construct Wall with defender. Put a +1/+1 counter on target permanent you control.
-1: Add 2 colorless mana to your mana pool. Target creature gains flying and vigilance until end of turn.
-10: Destroy all creatures without defender. You get an emblem that says, "Creatures you control with defender get +3/+3 and have indestructible."