Yvenna, Sacred Purifier

Flying, first strike, lifelink, vigilance
Whenever an Angel enters the battlefield, if it
was cast, gain 2 life for each {w} spent to cast it,
deal 1 damage to each opponent for each {r}
spent to cast it, then put a +1/+1 counter on it
for each {g} spent to cast it.
At the beginning of your upkeep, you may return
target Angel card from your graveyard to hand.