Falco Spara, Pactweaver + Sensei's Divining Top + Semblance Anvil + Arcbound Crusher

Falco Spara, Pactweaver

Sensei's Divining Top

Semblance Anvil

Arcbound Crusher

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 clever loop transforms Sensei's Divining Top into a self-sustaining engine by letting you draw it and immediately recast it from the top of your library. The magic happens because Semblance Anvil reduces the artifact's cost down to zero, while Falco Spara, Pactweaver provides the alternate payment by stripping a counter off a creature you control—such as the shield counter it enters with. Meanwhile, every time the Top cycles back onto the battlefield, Arcbound Crusher happily watches the artifact enter and grows endlessly with a fresh +1/+1 counter.