Falco Spara, Pactweaver + Sensei's Divining Top + Longshot, Rebel Bowman + Medusa, Inhuman Queen

Falco Spara, Pactweaver

Sensei's Divining Top

Longshot, Rebel Bowman

Medusa, Inhuman Queen

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 by paying 0 and removing a counter from a creature you control.
3. Longshot and Medusa trigger.
4. Resolve the Longshot trigger, dealing 2 damage to each opponent.
5. Resolve the Medusa trigger, putting a +1/+1 counter on it.
6. Repeat.

This looping marvel turns Sensei's Divining Top into an infinite engine by leveraging Falco Spara, Pactweaver's ability to cast spells from the top of your library using creature counters as an alternative cost. Because Sensei's Divining Top can tap to draw a card while returning itself to the top of your library, you can recast it for zero mana by continuously consuming counters from your creatures. Meanwhile, Longshot, Rebel Bowman takes advantage of this endless noncreature spellcasting to melt your opponents' life totals with sweeping damage, while Medusa, Inhuman Queen feeds upon those exact same casts to grow ever larger with fresh +1/+1 counters.