Falco Spara, Pactweaver + Sensei's Divining Top + Kappa Cannoneer + Lyse Hext

Falco Spara, Pactweaver

Sensei's Divining Top

Kappa Cannoneer

Lyse Hext

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. Lyse's prowess ability triggers, giving it +1/+1 until end of turn.
4. When Sensei's Divining Top enters, Kappa Cannoneer triggers, putting a +1/+1 counter on Kappa Cannoneer.
5. Repeat.

This loop transforms Sensei's Divining Top into a zero-cost engine by leveraging Falco Spara, Pactweaver's ability to cast from the top of your library using creature counters as an alternative payment. As you repeatedly draw and recast the artifact, Lyse Hext reduces its cost and triggers prowess to grow larger while providing cost reduction, and Kappa Cannoneer happily accepts a steady stream of +1/+1 counters each time the Top re-enters the battlefield.