The Fourth Doctor + Displacer Kitten + Sensei's Divining Top + Cemetery Prowler

The Fourth Doctor

Displacer Kitten

Sensei's Divining Top

Cemetery Prowler

How it works

1. Cast Sensei's Divining Top either from your hand or from the top of your library by paying 0.
2. Displacer Kitten triggers, and The Fourth Doctor triggers if you had cast Sensei's Divining Top from your library.
3. Resolve the Displacer Kitten trigger, blinking The Fourth Doctor.
4. Resolve the Fourth Doctor trigger, if applicable, creating a Food token.
5. Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top onto the top of your library.
6. Repeat.

This clever loop turns the unassuming Sensei's Divining Top into an engine for infinite card draw and artifact triggers by continuously casting it for free and resetting it. Cemetery Prowler does the heavy lifting behind the scenes, reducing the cost of artifact spells you cast to zero so you never run out of mana to recast the Top. Meanwhile, The Fourth Doctor lets you play historic spells like the Top straight from the top of your library while spitting out a Food token every time you do. Finally, Displacer Kitten provides the blinking utility that refreshes the Doctor whenever you cast a noncreature spell, letting you seamlessly loop the entire sequence.