Falco Spara, Pactweaver + Sensei's Divining Top + Urza, Lord Protector + Chasm Skulker

Falco Spara, Pactweaver

Sensei's Divining Top

Urza, Lord Protector

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 clever loop turns the top of your library into an engine for endless card draw by combining the library manipulation of Sensei's Divining Top with the alternate-casting mechanic granted by Falco Spara, Pactweaver. When you tap the Top to draw, Chasm Skulker's presence ensures that every single draw trigger grows its power with a fresh +1/+1 counter while feeding you the cards you need. Meanwhile, Urza, Lord Protector quietly lightens the load by reducing the cost of your artifact spells, making it even easier to continuously replay the Top from the top of your library by removing a counter instead of paying its mana cost.