Saw in Half + Sacrifice + Zealous Lorecaster

Saw in Half

Sacrifice

Zealous Lorecaster

How it works

1. Cast Saw in Half by paying 2, destroying Zealous Lorecaster and creating two token copies of it with base power equal to half the destroyed creature's power and base toughness equal to half the destroyed creature's toughness, rounding up each time.
2. When the Zealous Lorecaster tokens enter the battlefield, they trigger, returning Saw in Half and Sacrifice from your graveyard to your hand.
3. Cast Sacrifice by paying and sacrificing a Zealous Lorecaster token, adding an amount of equal to its mana value.
4. Repeat.