Sensei's Divining Top + Umori, the Collector + Fateful Discovery

Sensei's Divining Top

Umori, the Collector

Fateful Discovery

How it works

1. Cast Sensei's Divining Top by paying 0 due to Umori.
2. When Sensei's Divining Top enters, Fateful Discovery 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 Fateful Discovery trigger, causing you to draw Sensei's Divining Top from your library.
5. Repeat

This clever engine transforms Sensei's Divining Top into a self-replacing loop by leaning on cost reduction and triggered card drawing. With Umori, the Collector set to artifacts, the Top becomes completely free to cast, meaning every iteration of the loop nets you a card rather than costing mana. As you cast it, Fateful Discovery triggers to draw you a card upon entry, but you can respond by tapping the Top to draw and tuck it back onto your library—allowing the resolution of the Fateful Discovery trigger to draw the Top right back into your hand.