The Fourth Doctor + Displacer Kitten + Sensei's Divining Top + Jhoira's Familiar

The Fourth Doctor

Displacer Kitten

Sensei's Divining Top

Jhoira's Familiar

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 cunning loop transforms Sensei's Divining Top into a free, endlessly repeatable engine by leveraging cost reduction and blink triggers. With Jhoira's Familiar on the board reducing historic spells by {1}, Sensei's Divining Top costs nothing to cast, allowing you to cast it repeatedly from the top of your library thanks to The Fourth Doctor's ability to play historic spells from there. Every time you cast the artifact, Displacer Kitten triggers to blink The Fourth Doctor, while The Fourth Doctor rewards you with a fresh Food token. Finally, you tap Sensei's Divining Top to draw a card and slide it right back onto the top of your library, priming the entire sequence to begin anew.