Vivi Ornitier + Agatha's Soul Cauldron + Geralf, the Fleshwright + Seething Anger

Vivi Ornitier

Agatha's Soul Cauldron

Geralf, the Fleshwright

Seething Anger

How it works

1. Cast Seething Anger with buyback by paying 3.
2. Geralf triggers, creating a 2/2 Zombie Rogue creature token.
3. 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.
4. Resolve the Seething Anger spell, returning it to your hand.
5. Activate the Zombie Rogue using Vivi's ability by paying 0, adding an amount of equal to its power.
6. Repeat.

This loop is a masterclass in turning a pump spell into an engine by letting your creatures share abilities through Agatha's Soul Cauldron. By exiling Vivi Ornitier with the Cauldron and using Geralf, the Fleshwright to generate token creatures with +1/+1 counters, those tokens inherit Vivi's devastating mana-producing activated ability. You then cast Seething Anger with buyback repeatedly, feeding Geralf's spell-count triggers to continually flood the board with new Zombie Rogues. Each fresh token enters with rapidly growing counters—fueled by Geralf's static growth—which simultaneously pump its power and supercharge the mana it can tap for, letting you loop Seething Anger infinitely while generating unbounded colored mana, creature tokens, and storm count.