Cyberdarkness Dragon

Level 10 DARK/Machine Fusion Effect
2000 ATK / 2000 DEF

5 "Cyberdark" Effect Monsters
Must first be Fusion Summoned. If this card is Special Summoned: You can equip 1 Dragon or Machine monster from your GY to this card. Gains ATK equal to the original ATK of the monster equipped to it by this effect. When your opponent activates a card or effect (Quick Effect): You can send 1 Equip Card you control to the GY; negate the activation, and if you do, destroy that card.

Rulings – Yugipedia

Printings:

Legendary Duelists: LEDU-EN024 (Super Rare) - 2017-09-07
Legendary Duelists: Season 1: LDS1-EN037 (Common) - 2020-07-02
Structure Deck: Cyber Strike: SDCS-EN043 (Common) - 2021-10-14

Prices:

Cardmarket: 0.02 €
TCGplayer: $ 0.09