Requires

Saw in Half must be in hand. Cabal Ritual must be in hand. Mnemonic Wall must be on the battlefield. You have at least seven cards in your graveyard. Mana needed:

Steps

1. Cast Cabal Ritual by paying , adding .
2. Cast Saw in Half by paying , 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.

Results