Falco Spara, Pactweaver + Sensei's Divining Top + Arcbound Crusher + Samut, the Driving Force

Falco Spara, Pactweaver

Sensei's Divining Top

Arcbound Crusher

Samut, the Driving Force

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, Arcbound Crusher triggers, putting a +1/+1 counter on Arcbound Crusher.
4. Repeat.

This elegant loop turns your library into an endless well of cards by leveraging Falco Spara, Pactweaver's ability to let you cast spells from the top of your deck using creature counters as an alternate payment method. You tap Sensei's Divining Top to draw a card and place itself back on top of your library, and because Samut, the Driving Force reduces the cost of your noncreature spells, that Top can be recast for free. As Sensei's Divining Top re-enters the battlefield, Arcbound Crusher happily triggers off the new artifact entering to accumulate +1/+1 counters, which can then be immediately consumed by Falco Spara, Pactweaver to pay the cost for the next iteration of the loop.