Ghostly Flicker + Mystic Sanctuary + Capture of Jingzhou + Eternal Witness

4-card combo · GU

Verdict

Yes — this 4-card loop chains Capture of Jingzhou back to the top of the library every turn for infinite extra turns.

Cards required

Cheapest stack total

$15.28

Color identity

Popularity

153 decks

Format

Commander

Buy required cards on TCGplayer

Ghostly Flicker blinks Mystic Sanctuary and Eternal Witness simultaneously; Eternal Witness returns Ghostly Flicker to hand, Mystic Sanctuary puts Capture of Jingzhou back on top of the library, and the next draw step restarts the loop. The engine lives in Simic extra-turns shells — Kruphix, God of Horizons, Teferi, Temporal Archmage, or any blue-green commander that already wants Eternal Witness recursion and Island density for Mystic Sanctuary.

How it works

Prerequisites

You control at least four Islands.

Steps

Activate Mystic Sanctuary by tapping it, adding .
Cast Capture of Jingzhou by paying its mana cost, causing you to take an extra turn after this one.
Cast Ghostly Flicker by paying , blinking Mystic Sanctuary and Eternal Witness.
When Eternal Witness and Mystic Sanctuary enter the battlefield, they trigger.
Resolve the Eternal Witness trigger, returning Ghostly Flicker from your graveyard to your hand.
Resolve the Mystic Sanctuary trigger, putting Capture of Jingzhou from your graveyard onto the top of your library.
Move to your next turn, drawing Capture of Jingzhou during your draw step.
Repeat.

Result

Infinite turns; Skip your draw steps; Lock

Cheaper, tighter, alternate lines

Capture of Jingzhou is interchangeable with any extra-turn spell that costs five blue mana — Time Warp and Temporal Manipulation slot in identically since Mystic Sanctuary only cares about instants and sorceries. If Eternal Witness is removed, Regrowth does not replace her here — the loop requires a creature ETB trigger on the same blink as Mystic Sanctuary, so Timeless Witness is the direct swap.

Ghostly Flicker + Mystic Sanctuary + Capture of Jingzhou + Eternal Witness

How it works

Cheaper, tighter, alternate lines

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