Saw in Half + Cabal Ritual + Mnemonic Wall

Saw in Half

Cabal Ritual

Mnemonic Wall

How it works

1. Cast Cabal Ritual by paying 1, adding .
2. Cast Saw in Half by paying 2, destroying Mnemonic Wall 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.
3. Both Mnemonic Wall tokens enter the battlefield, returning Saw in Half and Cabal Ritual from your graveyard to your hand.
4. Repeat.