ATTACK: 100
DEFENSE: 2000
ATTRIBUTE: DARK
CARD TYPE: Effect Monster
DESCRIPTION: If this card is sent to the GY as Link Material for the Link Summon of a Cyberse monster: You can Special Summon this card, but banish it when it leaves the field. When an attack is declared involving your Link Monster and an opponent's Link Monster: You can banish this card from your GY; negate that attack, and if you do, until the end of this turn, the original ATK of that opponent's monster becomes 0, also it is unaffected by card effects, except its own. You can only use each effect of "Firewall Guardian" once per turn.
MONSTERTYPE: Cyberse

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PRICE FAQ

What is Firewall Guardian (Dark Neostorm) worth today?

Firewall Guardian [1st Edition] has a TCGplayer market price of $0.38 as of 2026-09-17. Across 2 tracked variants, latest prices range from $0.31 to $0.38.

What is the all-time high price for Firewall Guardian?

In TickerMint's daily data (since September 2026), the all-time high market price for Firewall Guardian [1st Edition] is $0.38 (2026-09-17) and the all-time low is $0.36 (2026-09-16).

What would a seller actually net for Firewall Guardian?

The TickerMint Estimate for Firewall Guardian is $0.38. It is a fee-adjusted fair value blending TCGplayer and eBay data to estimate what a seller nets after marketplace fees.

how these numbers are computed →

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