Emry, Lurker of the Loch + Umbral Mantle + Sol Ring + Krark-Clan Ironworks

4-card combo · U

Verdict

Yes — this 4-card loop grows Emry, Lurker of the Loch into an arbitrarily large attacker while generating infinite storm count in mono-blue.

Cards required: 4
Cheapest stack total: $28.80
Color identity: U
Popularity: 102 decks
Format: Commander

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Krark-Clan Ironworks and Sol Ring together produce four colorless each loop; one pays to recast Sol Ring from the graveyard via Emry, Lurker of the Loch's tap ability, and three activate Umbral Mantle to untap Emry and stack +2/+2. Emry is already the engine commander in artifact-heavy blue shells, so Umbral Mantle and Krark-Clan Ironworks slot into decks already running her as a recursion engine.

Recipe

How it works

Prerequisites

Umbral Mantle attached to Emry. Emry does not have summoning sickness.

Steps

Activate Sol Ring by tapping it, adding .
Activate Krark-Clan Ironworks by sacrificing Sol Ring, adding .
Activate Emry by tapping it, allowing you to cast Sol Ring from your graveyard this turn.
Cast Sol Ring from your graveyard by paying .
Activate Emry by paying and untapping it, giving itself +2/+2 until end of turn.
Repeat.

Result

Infinitely large creature until end of turn; Infinite storm count

Variations

Cheaper, tighter, alternate lines

Umbral Mantle can attach to any creature that taps for enough mana, but Emry is the reason the loop stays mono-blue — replacing her loses the graveyard-cast angle entirely. The infinite storm count is real but needs a payoff: Aetherflux Reservoir is the cleanest closer, and Thousand-Year Storm turns any cantrip in hand into the kill. Note that Emry being a combat threat is the backup plan only — the loop has no built-in damage, so run at least one storm payoff.