Rootha, Mercurial Artist + Jeska's Will + Storm-Kiln Artist + Vernal Equinox

4-card combo · GUR

Verdict

Yes — this 4-card loop generates infinite storm count, infinite red mana, and exiles the entire library with permission to cast everything in it.

Cards required: 4
Cheapest stack total: $47.36
Color identity: GUR
Popularity: 0 decks
Format: Commander

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Storm-Kiln Artist turns each Jeska's Will cast into a Treasure, which funds Rootha's bounce activation; Rootha copies Jeska's Will, the copy resolves for at least four red, and that mana recasts Rootha to restart the chain. Vernal Equinox is the enabler that makes the stack gymnastics legal at any point, but the engine only fires when an opponent holds four or more cards — expect disruption windows around that prerequisite.

Recipe

How it works

Prerequisites

An opponent has four or more cards in hand. If you control a commander, you can choose both of Jeska's Will's modes if desired.

Steps

Cast Jeska's Will by paying .
Storm-Kiln Artist triggers, creating a Treasure token.
Activate a Treasure by tapping and sacrificing it, adding .
Holding priority, activate Rootha by paying and returning it from the battlefield to your hand, copying Jeska's Will.
Storm-Kiln Artist triggers, creating a Treasure token.
Resolve the Jeska's Will copy, adding at least .
Activate a Treasure by tapping and sacrificing it, adding .
Cast Rootha by paying .
Repeat from step 4.

Result

Infinite LTB; Infinite ETB; Infinite storm count; Infinite red mana; Infinite magecraft triggers; Exile your library with the ability to play the exiled cards until end of turn

Variations

Cheaper, tighter, alternate lines

The loop already kills on its own through library exile if a commander is on the battlefield to unlock both Jeska's Will modes, so a separate closer is rarely needed. In lists that can't guarantee a commander in play, pair the infinite storm count with Grapeshot or drop in Aetherflux Reservoir as a clean backup kill. Swapping Vernal Equinox for Wilderness Reclamation is a non-starter — the instant-speed activation is load-bearing here, so any permanent that grants instants spells the same role.