Sensei's Divining Top + Stone Calendar + Skyswimmer Koi

Sensei's Divining Top

Stone Calendar

Skyswimmer Koi

How it works

1. Cast Sensei's Divining Top by paying 0 due to Stone Calendar.
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 ingenious loop turns a simple top into an endless engine of card selection and graveyard-filling momentum. Thanks to Stone Calendar lowering the cost of artifacts to zero, casting Sensei's Divining Top becomes entirely free, letting you repeatedly deploy the artifact without ever spending mana. Every time it enters the battlefield, Skyswimmer Koi triggers to reward your artifact's arrival with a draw and a discard, allowing you to cycle through your deck while feeding your graveyard. By tapping Sensei's Divining Top in response to that trigger, you draw a card and place the top back on your library just in time for the Koi's effect to draw it right back into your hand—fueling near-infinite storm count and looting without ever losing your place.