Falco Spara, Pactweaver + Sensei's Divining Top + Captain Storm, Cosmium Raider + Gran-Gran

Falco Spara, Pactweaver

Sensei's Divining Top

Captain Storm, Cosmium Raider

Gran-Gran

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, Captain Storm triggers, putting a +1/+1 counter on Captain Storm.
4. Repeat.

By leveraging Falco Spara, Pactweaver to cast spells directly from the top of your library for the cost of a counter rather than mana, you can continuously play Sensei's Divining Top right back to the battlefield after drawing it with its own tap ability. Each time Sensei's Divining Top re-enters, Captain Storm, Cosmium Raider triggers to replenish the board with a +1/+1 counter on Captain Storm itself, supplying the very resource Falco Spara, Pactweaver needs to repeat the process. Meanwhile, Gran-Gran sits on the sidelines, its tap ability and cost-reduction sitting ready as part of the ensemble, while the loop itself churns out near-infinite artifact entries and draws to overwhelm your opponents.