Soul of the Dark Knight

Enchant Creature
Enchanted Creature gets +2/+2 and has
"{b}, {t}: Target creature gets +0/+2
until end of turn." and "{b}{b}{p/b}: Create a
token copy of enchanted creature with
"This creature is exiled at the end of its controller's turn."
Upon the surface of this multi-aspected crystal
are carved the myriad deeds of dark knights
from eras past.