Requires

Garth One-Eye must be on the battlefield. Twinflame must be in hand. Spark Double must be on the battlefield. Doubling Season must be on the battlefield. Mana needed:

Steps

1. Cast Twinflame by paying , targeting Spark Double as copy of Garth One-Eye, creating two token copy of Spark Double as a copy of Garth One-Eye.
2. Activate first Garth One-Eye token by tapping it, choosing Black Lotus.
3. Cast the copy of Black Lotus.
4. Activate Black Lotus by tapping and sacrifing it, adding .
5. Activate second Garth One-Eye token by tapping it, choosing Regrowth.
6. Cast the copy of Regrowth targeting Twinflame, returning it from your graveyard to your hand.
7. Cast Twinflame by paying its strive cost, targeting two token copy of Spark Double as a copy of Garth One-Eye, creating four token copy of Spark Double as a copy of Garth One-Eye.
8. Activate the first three Garth One-Eye token by tapping it, choosing black Lotus.
9. Cast the copy of Black Lotus.
10. Activate two Black Lotus by tapping and sacrificing it, adding .
11. Activate third Black Lotus by tapping and sacrificing it, adding .
12. Activate the fourth Garth One-Eye token by tapping it, choosing Regrowth.
13. Cast the copy of Regrowth targeting Twinflame, returning it from your graveyard to your hand.
14. Repeat from step 7.

Results