Let's Go

Delve (Each card you exile from your graveyard
while casting this spell pays for {1}.)
Tap target creature you control, then, choose
one. If you exiled four or more cards from your
graveyard to cast this spell, choose any number--
•Put a +1/+1 counter on up to four creatures
you control.
•Target creature gets +3/+3 until end of turn.