Rootha, Mercurial Artist + Jeska's Will + Storm-Kiln Artist + Winding Canyons

4-card combo · UR

Verdict

Yes — this 4-card loop uses Rootha's bounce ability to copy Jeska's Will infinitely, generating unbounded red mana and exiling your entire library to cast.

Cards required: 4
Cheapest stack total: $74.77
Color identity: UR
Popularity: 3 decks
Format: Commander

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Storm-Kiln Artist converts each Jeska's Will cast and copy into Treasure, funding Rootha's 2-mana bounce activation that replays the whole chain. Winding Canyons is the enabler that lets Rootha enter at instant speed to hold priority after Jeska's Will resolves, keeping the loop tight. The combo requires an opponent with four or more cards in hand and a commander on-field to hit both Jeska's Will modes simultaneously — two conditions that aren't always guaranteed.

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

Activate Winding Canyons by paying and tapping it, allowing you to cast creature spells as though they have flash this turn.
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 5.

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 infinite storm count and magecraft triggers make Aetherflux Reservoir and Guttersnipe natural closers; the exiled library kill is the cleaner line if the board state supports it. Birgi, God of Storytelling can substitute for Storm-Kiln Artist as the mana engine since each spell cast refunds a red — but Birgi generates generic red rather than Treasures, narrowing the color flexibility. If Winding Canyons is unavailable, the loop still fires at sorcery speed on a turn where Rootha hasn't summoning-sick yet.