Falco Spara, Pactweaver + Sensei's Divining Top + The Immortal Sun + Chasm Skulker

Falco Spara, Pactweaver

Sensei's Divining Top

The Immortal Sun

Chasm Skulker

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. Chasm Skulker triggers, putting a +1/+1 counter on it.
3. Cast Sensei's Divining Top from the top of your library by paying 0 and removing a counter from a creature you control.
4. Repeat.

This elegant engine turns Sensei's Divining Top into a self-sustaining loop by using Falco Spara, Pactweaver's alternate casting cost to play the Top directly off the top of your library for free—using its own drawn card as the replacement counter. Meanwhile, The Immortal Sun chips away at the casting cost and pumps your team, while Chasm Skulker feasts on every single card draw to grow monstrously large and leave behind a massive army of Squid tokens if it ever perishes.