Sensei's Divining Top + Temur Battlecrier + Rook Turret

Sensei's Divining Top

Temur Battlecrier

Rook Turret

How it works

1. Cast Sensei's Divining Top by paying 0 due to Temur Battlecrier.
2. When Sensei's Divining Top enters, Rook Turret 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 Rook Turret 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 ingenious loop turns a modest artifact into an endless engine by leveraging cost reduction and card flow. With Temur Battlecrier discount-fueling your spells down to zero, you can cast Sensei's Divining Top for free, immediately triggering Rook Turret's loot ability upon entry. Before that draw trigger even resolves, you tap the Top to draw a card and place it back on top of your library, allowing the Rook Turret trigger to cleanly put Sensei's Divining Top back into your hand while you discard a card of your choice.