Requires

Saw in Half must be in hand. Dockside Extortionist must be on the battlefield. Eternal Witness must be in hand. Your opponents control at least five artifacts and/or enchantments. Mana needed:

Steps

1. Cast Saw in Half by paying , destroying Dockside Extortionist 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. Both Dockside Extortionist tokens enter the battlefield, creating at least ten Treasure tokens.
3. Activate nine Treasure tokens by tapping and sacrificing them, adding .
4. Cast Eternal Witness by paying .
5. Eternal Witness enters the battlefield, returning Saw in Half from your graveyard to your hand.
6. Cast Saw in Half by paying , destroying Eternal Witness 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.
7. Both Eternal Witness tokens enter the battlefield, returning Eternal Witness and Saw in Half from your graveyard to your hand.
8. Repeat.

Results