Sensei's Divining Top + Transplant Theorist + Urza, Lord Protector

Sensei's Divining Top

Transplant Theorist

Urza, Lord Protector

How it works

1. Cast Sensei's Divining Top by paying 0 due to Urza.
2. When Sensei's Divining Top enters, Transplant Theorist triggers.
3. Holding priority, activate Sensei's Divining Top by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
4. Resolve the Transplant Theorist trigger, causing you to draw Sensei's Divining Top from your library, and then discard a card other than Sensei's Divining Top.
5. Repeat

By leveraging Urza, Lord Protector to make artifact spells completely free to cast, Sensei's Divining Top can be continuously replayed without spending any mana. Each time this artifact enters the battlefield, Transplant Theorist triggers to let you loot, keeping your hand fresh while fueling your graveyard. Before that draw trigger resolves, you can tap Sensei's Divining Top to draw a card and place itself back on top of your library, ensuring the Theorist's ability grabs the Top right back out.