Temur Sabertooth + Burning-Tree Emissary + Elesh Norn, Mother of Machines

Temur Sabertooth

Burning-Tree Emissary

Elesh Norn, Mother of Machines

How it works

1. Activate Temur Sabertooth by paying 1, returning Burning-Tree Emissary to your hand from the battlefield.
2. Cast Burning-Tree Emissary by paying R/GR/G.
3. When Burning-Tree Emissary enters the battlefield, it triggers twice, adding .
4. Repeat.