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

Vivi Ornitier

Agatha's Soul Cauldron

Geralf, the Fleshwright

Clockspinning

How it works

1. Cast Clockspinning 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 Clockspinning 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 engine transforms a simple loop into an overwhelming cascade of resources by uniting Vivi Ornitier, Agatha's Soul Cauldron, Geralf, the Fleshwright, and Clockspinning. Agatha’s Soul Cauldron sets the stage by letting your creatures tap into Vivi Ornitier's pumped-up mana-generating activated ability, provided they carry the necessary +1/+1 counters. Enter Geralf, the Fleshwright, which supplies those crucial counters and an endless supply of Zombie Rogue tokens whenever you cast subsequent spells like Clockspinning with its buyback cost. As those tokens enter with growing piles of +1/+1 counters, they amplify Vivi's power through the Cauldron, ultimately generating infinite mana while Clockspinning perpetually returns to your hand to fuel the loop again.