Saw in Half + Sacrifice + Greenwarden of Murasa

Saw in Half

Sacrifice

Greenwarden of Murasa

How it works

1. Cast Saw in Half by paying 2, destroying Greenwarden of Murasa 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 Greenwarden of Murasa 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 Greenwarden of Murasa token, adding an amount of equal to its mana value.
4. Repeat.

This clever loop leverages the fact that token copies of Greenwarden of Murasa retain the original's mana value and enters-the-battlefield ability, allowing you to easily go mana-neutral or positive depending on how you structure your sacrifices. By casting Saw in Half on the original Greenwarden of Murasa, you birth two token copies that immediately trigger their entry abilities to return both Saw in Half and Sacrifice right back to your hand. You then feed one of those tokens to Sacrifice, fueling your next casting of Saw in Half while keeping the recursion completely unbroken.