Unknown Synchron

Tuner Effect Monster

Unknown Synchron is a Tuner Effect Monster (DARK/Machine, Level 1) with 0 ATK / 0 DEF. First printed in Extreme Victory (2011).

Type: Tuner Monster
Attribute: DARK
Monster type: Machine
Level: 1
ATK / DEF: 0 / 0
Archetype: Synchron
Banlist: Unlimited in the TCG, OCG, and Master Duel
TCG release: 2011-04-30
Printings: 4

Card text

If only your opponent controls a monster, you can Special Summon this card (from your hand). You can only Special Summon "Unknown Synchron" once per Duel this way.

Approximate value

≈$0.08

A rough figure from recent listings (updated 2026-06-09), not a market value or official price. It varies a lot with printing, condition, edition, rarity, and grading. Check current listings below before buying or selling.

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Printings & rarities

All printings →

Set	Set code	Rarity	Release	Price*
Extreme Victory	EXVC-EN002	Common	2011-05-06	$1.38
Legendary Collection 5D's Mega Pack	LC5D-EN022	Secret Rare	2014-10-23	$0.08
Synchron Extreme Structure Deck	SDSE-EN008	Common	2015-08-27	$1.25
Legendary Duelists: Synchro Storm	LED8-EN049	Common	2021-10-28	$1.00

*Approximate, from recent marketplace listings, not market values.