Falco Spara, Pactweaver + Sensei's Divining Top + Stone Calendar + Oneirophage

Falco Spara, Pactweaver

Sensei's Divining Top

Stone Calendar

Oneirophage

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. Oneirophage 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 loop turns Sensei's Divining Top into a self-sustaining engine by tapping it to draw a card and place itself back on top of your library. Stone Calendar steps in to reduce that casting cost to zero, allowing Falco Spara, Pactweaver to cast the Top directly from the library for free by using its ability to remove a counter from a creature instead of paying mana. Meanwhile, Oneirophage capitalizes on every iteration by growing larger with a new +1/+1 counter every time you draw, fueling your board with continuous triggers.