Sensei's Divining Top + Semblance Anvil + Skyswimmer Koi

Sensei's Divining Top

Semblance Anvil

Skyswimmer Koi

How it works

1. Cast Sensei's Divining Top by paying 0 due to Semblance Anvil.
2. When Sensei's Divining Top enters, Skyswimmer Koi 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 Skyswimmer Koi 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 clever loop turns a modest top into an engine of endless iteration by reducing its cost to zero with Semblance Anvil. As you cast Sensei's Divining Top for free, Skyswimmer Koi rewards each artifact's arrival by triggering its looting ability. By tapping the top to draw and place itself back on your library just before the Koi's draw resolves, you cleanly cycle the artifact right back into your hand to repeat the process.