Falco Spara, Pactweaver + Sensei's Divining Top + Etherium Sculptor + Mm'menon, Uthros Exile

Falco Spara, Pactweaver

Sensei's Divining Top

Etherium Sculptor

Mm'menon, Uthros Exile

How it works

1. Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
2. Cast Sensei's Divining Top from the top of your library by paying 0 and removing a counter from a creature you control.
3. When Sensei's Divining Top enters, Mm'menon triggers, putting a +1/+1 counter on Mm'menon.
4. Repeat.

This loop sets up a self-sustaining engine by turning the top of your library into your hand using Falco Spara, Pactweaver's alternate casting cost, which allows you to cast spells from the library by sacrificing a counter from a creature instead of paying mana. Sensei's Divining Top effortlessly fuels this by drawing itself and placing itself back on top, while Etherium Sculptor reduces its cost to zero so you never run out of resources. Finally, Mm'menon, Uthros Exile steps in to replenish your creature counters every time the Top re-enters, ensuring you have a steady supply of fodder to keep the entire mechanism spinning infinitely.