Temur Sabertooth + Overgrown Battlement + Concordant Crossroads

Temur Sabertooth

Overgrown Battlement

Concordant Crossroads

How it works

1. Activate Overgrown Battlement by tapping it, adding an amount of .
2. Activate Temur Sabertooth by paying 1, returning Overgrown Battlement from the battlefield to your hand.
3. Cast Overgrown Battlement by paying its mana cost.
4. Repeat.

This loop leverages Temur Sabertooth's ability to bounce your own creatures to safety, using the mana generated by Overgrown Battlement to repeatedly pay for the activation and subsequent recast. Concordant Crossroads provides the crucial haste that allows Overgrown Battlement to be tapped immediately upon entering the battlefield each time, bypassing summoning sickness. Because the mana produced by the Battlement outpaces the cost to bounce and replay it, this creates an engine that yields infinite green mana, infinite enters-the-battlefield triggers, and an unbounded storm count.