The Sentry

+1: Create a 2/1 Colorless Probe creature token with, Flying, Hexproof, Defender, First-strike."
0: Until your next turn, whenever a creature attacks you or a planeswalker you control, The Sentry deals a damage to it.
-10: Gain an emblem with," You and creatures you control have Hexproof and indestructible, and defender."