Firewall Guardian, Cyberse effect monster, designed by Konami first released in Jun, 2022 in the set Dark Neostorm Special Edition. It's currently being selled by the minimum price of $ 0.27.
|Cyberse effect monster
|If this card is sent to the GY as 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 See more
|Dark Neostorm Special Edition #EN001