Infinite colored manaInfinite creature ETBInfinite storm countInfinite +1/+1 counters on an infinite number of creature tokensInfinite damage
How it works
Cast Searing Touch with buyback by paying 4.
Geralf triggers, creating a 2/2 Zombie Rogue creature token.
When the Zombie Rogue enters the battlefield, Geralf's second ability triggers, putting a +1/+1 counter on the Zombie Rogue for each other Zombie that entered the battlefield under your control this turn.
Resolve the Searing Touch spell, returning it to your hand.
Activate the Zombie Rogue using Vivi's ability by paying 0, adding an amount of equal to its power.
Repeat.
This potent loop transforms the endless recursion of Searing Touch into a self-sustaining engine by leveraging Geralf, the Fleshwright to flood the board with growing Zombie tokens. As each successive token enters with increasingly larger +1/+1 counters, Agatha's Soul Cauldron steps in to grant them the explosive mana-producing activated ability stolen from an exiled Vivi Ornitier. Because Agatha's Soul Cauldron also allows you to spend your mana freely as any color, tapping your powered-up tokens effortlessly funds the buyback cost to cast Searing Touch again, creating a brilliant infinite loop of spells, tokens, and damage.