Sensei's Divining Top + Transplant Theorist + Temur Battlecrier

Sensei's Divining Top

Transplant Theorist

Temur Battlecrier

How it works

1. Cast Sensei's Divining Top by paying 0 due to Temur Battlecrier.
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

This elegant loop transforms a humble artifact into a self-sustaining engine by taking full advantage of cost reduction and draw manipulation. With Temur Battlecrier lowering the price of artifacts to zero, you can cast Sensei's Divining Top for free, immediately triggering Transplant Theorist to set up a loot effect. By responding to that trigger with the Top's own tapping ability, you place the Top safely on top of your library just in time to draw it with the Theorist's resolution—allowing you to discard another card and endlessly repeat the process.