Panoptic Mirror + Lithoform Engine + Ghostly Flicker + Sol Ring

4-card combo · U

Verdict

Yes — this 4-card upkeep loop generates infinite storm count and magecraft triggers, though it needs a dedicated outlet to actually close the game.

Cards required: 4
Cheapest stack total: $29.44
Color identity: U
Popularity: 14 decks
Format: Commander

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Panoptic Mirror imprints Ghostly Flicker; at each upkeep trigger, Lithoform Engine copies that trigger for 2 mana, which Sol Ring immediately refunds. Resolving the copied trigger blinks Sol Ring and Lithoform Engine back into play untapped, resetting the loop — the table watches you build a storm count in the upkeep step before a single spell hits the stack on your main phase.

Recipe

How it works

Prerequisites

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Steps

At the beginning of your upkeep, Panoptic Mirror triggers.
Holding priority, activate Sol Ring by tapping it, adding .
Activate Lithoform Engine's first ability by paying and tapping it, copying Panoptic Mirror's trigger.
Resolve the copy of Panoptic Mirror's trigger, casting a copy of Ghostly Flicker without paying its mana cost.
Resolve the copy of Ghostly Flicker, blinking Sol Ring and Lithoform Engine.
Repeat from step 2.

Result

Infinite storm count; Infinite magecraft triggers

Variations

Cheaper, tighter, alternate lines

Thousand-Year Storm and Bonus Round are the obvious storm-count payoffs, but neither is in blue's core kill suite — Aetherflux Reservoir is the cleaner closer here since it sits passively and converts the loop mid-chain. If Lithoform Engine is removed, the loop collapses entirely; there is no cheaper substitute that copies triggered abilities in mono-blue, so the combo is fragile to a single piece of interaction during the upkeep window.