Falco Spara, Pactweaver + Sensei's Divining Top + Chasm Skulker + Enthusiastic Mechanaut

Falco Spara, Pactweaver

Sensei's Divining Top

Chasm Skulker

Enthusiastic Mechanaut

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 ingenious loop transforms Sensei's Divining Top into a self-sustaining engine by utilizing Falco Spara, Pactweaver's ability to cast spells from the top of your library using counters instead of mana. Enthusiastic Mechanaut ensures that Sensei's Divining Top can be cast for free, while Chasm Skulker quietly capitalizes on every single iteration by growing larger with every card drawn. As you repeatedly tap the Top to draw and then recast it from the top of your library, you feed the Skulker endless +1/+1 counters to amass a towering threat.