Displacer Kitten + The One Ring + Sensei's Divining Top + Gran-Gran

4-card combo · U

Verdict

Yes — this 4-card loop draws the entire library in mono-blue by recycling Sensei's Divining Top through The One Ring on every free cast.

Cards required: 4
Cheapest stack total: $47.63
Color identity: U
Popularity: 16 decks
Format: Commander

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Gran-Gran reduces Sensei's Divining Top to zero mana, letting each cast trigger Displacer Kitten; Kitten blinks The One Ring, resetting its draw ability so the Top can be drawn immediately and recast again. The loop generates one burden counter per iteration but draws the full library before protection from everything on The One Ring ever becomes a problem at the table.

Recipe

How it works

Prerequisites

There are at least three Lesson cards in your graveyard.

Steps

Cast Sensei's Divining Top by paying .
Displacer Kitten triggers, blinking The One Ring.
Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top from the battlefield onto the top of your library.
Activate The One Ring by tapping it, putting a burden counter on it and causing you to draw Sensei's Divining Top from your library.
Repeat.

Result

Infinite card draw; Infinite draw triggers; Near-infinite storm count

Variations

Cheaper, tighter, alternate lines

Displacer Kitten combos with any zero-mana noncreature spell engine, so swapping Gran-Gran for another cost-reducer like Etherium Sculptor works if the deck already leans artifact. Three Lesson cards in the graveyard is Gran-Gran's prerequisite overhead — Strixhaven lesson packages or self-mill are needed to enable it reliably. Once the library is drawn, Thassa's Oracle is the clean closer.