Falco Spara, Pactweaver + Sensei's Divining Top + Umori, the Collector + Toothy, Imaginary Friend

Falco Spara, Pactweaver

Sensei's Divining Top

Umori, the Collector

Toothy, Imaginary Friend

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. Toothy 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 brilliant little loop is fueled by Falco Spara, Pactweaver, whose static ability lets you cast spells straight from the top of your library by trading away counters from your creatures instead of paying mana costs. Sensei's Divining Top is the star of the show, allowing you to tap it to draw a card and slide itself right back onto the top of your library, while Umori, the Collector quietly ensures your entire deck is unified so everything runs smoothly. Every time that draw happens, Toothy, Imaginary Friend happily triggers to grow with a +1/+1 counter—counters that Falco Spara, Pactweaver can then happily consume to recast Sensei's Divining Top for free, repeating the cycle for an endless stream of artifact triggers and card draws.