Agatha of the Vile Cauldron + Soulbright Flamekin + Temur Sabertooth + Gemstone Array

Agatha of the Vile Cauldron

Soulbright Flamekin

Temur Sabertooth

Gemstone Array

How it works

1. Activate Soulbright Flamekin three times by paying 3, adding eight .
2. Activate Gemstone Array's first ability by paying 2, putting a charge counter on it.
3. Activate Gemstone Array's second ability by removing a charge counter from it, adding .
4. Activate Temur Sabertooth by paying , returning Soulbright Flamekin to your hand from the battlefield.
5. Cast Soulbright Flamekin by paying 1.
6. Repeat.
7. Once you have infinite mana, you may use it to activate Agatha of the Vile Cauldron's ability.

This intricate loop hinges on Agatha of the Vile Cauldron, whose passive cost reduction dramatically shrinks the activation price of Soulbright Flamekin's targeted ability. By repeatedly targeting Soulbright Flamekin with its own ability three times, you leverage its triggered effect to generate a massive surplus of red mana. You then channel that energy through Gemstone Array to filter your mana while churning up endless charge counters, fueling Temur Sabertooth to continuously bounce and recast Soulbright Flamekin.