Agatha of the Vile Cauldron + Soulbright Flamekin + Temur Sabertooth + Energy Refractor

Agatha of the Vile Cauldron

Soulbright Flamekin

Temur Sabertooth

Energy Refractor

How it works

1. Activate Soulbright Flamekin three times by paying 3, adding eight .
2. Activate Energy Refractor by paying 2, adding .
3. Activate Temur Sabertooth by paying , returning Soulbright Flamekin to your hand from the battlefield.
4. Cast Soulbright Flamekin by paying 1.
5. Repeat.
6. Once you have infinite mana, you may use it to activate Agatha of the Vile Cauldron's ability.

This elegant loop relies on Agatha of the Vile Cauldron to slash the activation cost of Soulbright Flamekin down to a mere single mana, turning its third-resolution bonus into a massive net positive. By funneling that explosive red mana into Energy Refractor, you can filter it into the exact green mana needed to activate Temur Sabertooth's bounce ability. Temur Sabertooth then whisks Soulbright Flamekin safely back to your hand so you can recast it and repeat the whole sequence for boundless mana, storm count, and creature triggers.