Kaldur, High Knight

+2: Creatures you control get +1/+0 and gain trample until the end of the turn.
0: Untile the end of the turn, Kaldur becomes an X/5 Knight creature with indestructible, where X is the power of target creature you control.
-5: Reveal your hand. Create a 2/2 red Knight with haste for each creature revealed and creatures you control get +1/+0 until the end of the turn.