Falco Spara, Pactweaver + Sensei's Divining Top + Surge Conductor + Semblance Anvil

Falco Spara, Pactweaver

Sensei's Divining Top

Surge Conductor

Semblance Anvil

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 Diving 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 the battlefield, Surge Conductor triggers, putting a counter on a creature you control that already has a counter on it.
4. Repeat.

This clever engine turns Sensei's Divining Top into a self-replacing spell that you can cast directly from the top of your library, thanks to Falco Spara, Pactweaver letting you pay for spells with creature counters instead of mana. To make this free, Semblance Anvil reduces the artifact's cost by two, while Surge Conductor steps in each time Sensei's Divining Top re-enters the battlefield to proliferate your creature counters, cleanly replenishing the exact resource Falco Spara, Pactweaver demands. By constantly tapping Sensei's Divining Top to draw a card and put itself back on library, you achieve an infinite loop of drawing your deck and cycling artifacts.