Falco Spara, Pactweaver + Sensei's Divining Top + Chasm Skulker + Armor Wars

Falco Spara, Pactweaver

Sensei's Divining Top

Chasm Skulker

Armor Wars

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 engine relies on Falco Spara, Pactweaver to act as the ultimate enabler, letting you cast Sensei's Divining Top right off the top of your library by removing a counter instead of paying its mana cost. Each time you tap Sensei's Divining Top to draw a card, it places itself back on top of your library and triggers Chasm Skulker, which happily grows larger with every single card drawn. Meanwhile, Armor Wars sits in play, providing card draw from its first chapter while you churn through your library and stack up near-infinite artifact enters-and-leaves-the-battlefield triggers.