Eidos the Underworld Monarch

Effect Monster

Eidos the Underworld Monarch is a Effect Monster (DARK/Spellcaster, Level 6) with 2400 ATK / 1000 DEF. First printed in Duelist's Advance (2025).

Type: Effect Monster
Attribute: DARK
Monster type: Spellcaster
Level: 6
ATK / DEF: 2400 / 1000
Archetype: Monarch
Banlist: Unlimited in the TCG, OCG, and Master Duel
TCG release: 2025-07-03
Printings: 2

Card text

If this card is Normal or Special Summoned: You can add 1 "Monarch" Spell/Trap or 1 monster with 2800 ATK/1000 DEF from your Deck or GY to your hand. You can declare 1 Attribute; make 1 face-up monster on the field become that Attribute. If you Tribute Summon a monster with 2400 or more ATK and 1000 DEF, while this card is in your GY: You can add this card to your hand or Special Summon it. You can only use each effect of "Eidos the Underworld Monarch" once per turn.

Approximate value

≈$3.54

A rough figure from recent listings (updated 2026-07-26), 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

Set	Set code	Rarity	Release	Price*
Duelist's Advance	DUAD-EN017	Starlight Rare	2025-07-03	$3.54
Duelist's Advance	DUAD-EN017	Ultra Rare	2025-07-03	$3.54

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