Mirran Spy + Banishing Knack + Sol Ring

3-card combo · U

Verdict

Yes — this 3-card loop generates infinite colorless mana and infinite storm count from a single blue instant and two permanents already common in Commander.

Cards required

Cheapest stack total

$5.57

Color identity

Popularity

1,035 decks

Format

Commander

Buy required cards on TCGplayer

Banishing Knack turns Mirran Spy into a repeating bounce engine: each activation returns Sol Ring to hand, casting it for 1 triggers Mirran Spy to untap itself, and the two colorless Sol Ring produces every loop outpaces the cost. The combo slots naturally into any blue storm or artifact shell that already runs Sol Ring — which is nearly every Commander deck that touches blue.

How it works

Prerequisites

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Steps

Cast Banishing Knack by paying , targeting Mirran Spy.
Activate Sol Ring by tapping it, adding .
Activate Mirran Spy by tapping it, returning Sol Ring from the battlefield to your hand.
Cast Sol Ring by paying .
Mirran Spy triggers, untapping itself.
Repeat from step 2.

Result

Infinite colorless mana; Infinite ETB; Infinite LTB; Infinite storm count

Cheaper, tighter, alternate lines

Retraction Helix is the identical replacement for Banishing Knack at the same

cost if redundancy is needed. The loop produces colorless mana, so the kill requires a separate outlet — Aetherflux Reservoir closes on storm count, Walking Ballista closes on mana; without one of those already in play, the loop is pointless.

Mirran Spy + Banishing Knack + Sol Ring

How it works

Cheaper, tighter, alternate lines

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