Elayne, Daughter-Heir

When Elayne enters the battlefield and at the
beginning of your upkeep, create a tapped
colorless artifact token named Ter'angreal
with "{t}: Double the power of target
creature you control until end of turn."
The first time an artifact you control is put
into a graveyard from the battlefield each turn,
put a +1/+1 counter on Elayne.