Thyre, Nightwing Apostle

+2: Up to 2 target creatures you control get +1/+1 and have flying until end of turn.
0: Until end of turn, Thyre becomes a X/X black white angel creature with flying and indestructible. X is equal to your devotion to black and white.
-X: Up to X target creatures get +X/+X and have flying, vigilance, lifelink and indestructible until end of turn.