Falco Spara, Pactweaver + Sensei's Divining Top + Kappa Cannoneer + Starnheim Courser

Falco Spara, Pactweaver

Sensei's Divining Top

Kappa Cannoneer

Starnheim Courser

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, Kappa Cannoneer triggers, putting a +1/+1 counter on Kappa Cannoneer.
4. Repeat.

This clever loop turns your library's top card into a self-sustaining engine by letting Falco Spara, Pactweaver bypass mana costs altogether, allowing you to cast spells from the top of your library by simply trading away a creature's counter. Sensei's Divining Top fuels this by constantly replacing itself in your hand while putting itself right back onto the top of your library, where Falco Spara can immediately recast it for free using its own newly acquired counters. Meanwhile, Starnheim Courser greases the wheels by making artifact spells cheaper, though the real payoff comes from Kappa Cannoneer growing larger with every single artifact entry and threatening an unblockable, lethal strike.