Muldrotha, the Gravetide + Displacer Kitten + Sol Ring + Grinding Station

4-card combo · BGU

Verdict

Yes — this 4-card loop mills every library at the table while generating infinite ETB and LTB triggers off a single Sol Ring.

Cards required: 4
Cheapest stack total: $87.92
Color identity: BGU
Popularity: 81 decks
Format: Commander

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Muldrotha, the Gravetide recasts Sol Ring from the graveyard each loop; casting it triggers Displacer Kitten, which blinks Muldrotha and resets the once-per-turn artifact-play restriction. Grinding Station untaps on Sol Ring's ETB, so every pass through the loop eats three cards from any target — point it at opponents or yourself depending on what wins the game.

Recipe

How it works

Prerequisites

You have not cast an artifact spell using Muldrotha this turn.

Steps

Activate Sol Ring by tapping it, adding .
Activate Grinding Station by tapping it and sacrificing Sol Ring, causing target player to mill three cards.
Cast Sol Ring from your graveyard by paying .
Displacer Kitten triggers, blinking Muldrotha.
When Sol Ring enters the battlefield, Grinding Station triggers, untapping Grinding Station.
Repeat.

Result

Infinite LTB; Infinite ETB; Infinite mill; Infinite self-mill; Infinite storm count

Variations

Cheaper, tighter, alternate lines

Any 0- or 1-mana artifact replaces Sol Ring as the sacrifice fodder — Tormod's Crypt, Lotus Petal, or Mishra's Bauble all close the loop just as cleanly and may be easier to tutor. The loop mills but doesn't win on its own without a Laboratory Maniac, Thassa's Oracle, or Altruistic Immortal in the deck; make sure the kill condition is already in the list before assembling this.