I.A.S. -Invasive Alien Species-

Effect Monster

I.A.S. -Invasive Alien Species- is a Effect Monster (LIGHT/Reptile, Level 4) with 1600 ATK / 0 DEF. First printed in Age of Overlord (2023).

Type: Effect Monster
Attribute: LIGHT
Monster type: Reptile
Level: 4
ATK / DEF: 1600 / 0
Archetype: Alien
Banlist: Unlimited in the TCG, OCG, and Master Duel
TCG release: 2023-10-19
Printings: 2

Card text

Cannot be destroyed by battle or card effects while your opponent has a face-up card in their Field Zone. You can only use each of the following effects of "I.A.S. -Invasive Alien Species-" once per turn. If your opponent has a face-up card in their Field Zone: You can target 1 monster they control; destroy it, and if you do, this card gains 1000 ATK. If your opponent has a face-up card in their Field Zone, while this card is in your GY: You can Special Summon this card.

Approximate value

≈$0.10

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*
Age of Overlord	AGOV-EN023	Common	2023-10-19	$0.10
25th Anniversary Tin: Dueling Mirrors	MP24-EN236	Ultra Rare	2024-09-19	$0.10

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