Sensei's Divining Top + Umori, the Collector + One with the Multiverse

Sensei's Divining Top

Umori, the Collector

One with the Multiverse

How it works

1. 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.
2. Cast Sensei's Divining Top from the top of your library by paying 0.
3. Repeat

This clever loop transforms Sensei's Divining Top into a self-sustaining engine by manipulating the top of your library. One with the Multiverse sets the stage by letting you cast spells directly from your library while granting a free cast each turn, though here it simply enables playing the Top over and over without paying mana. Meanwhile, Umori, the Collector quietly reduces the cost of artifact spells by {1}, making the Top completely free to recast each time it draws a card and puts itself away. The result is an endless cascade of draws and storm count as you spin the Top repeatedly into the same slot.