Vylon Material

Equip Spell

Equip only to a "Vylon" monster. It gains 600 ATK. If this face-up card is sent from the field to the Graveyard: You can add 1 "Vylon" Spell Card from your Deck to your hand.

Rulings – Yugipedia

Printings:

Duel Terminal 5a: DT05-EN045 (Duel Terminal Rare Parallel Rare) - 2011-05-29
Hidden Arsenal 5: Steelswarm Invasion: HA05-EN028 (Super Rare) - 2011-12-01

Prices:

Cardmarket: 0.22 €
TCGplayer: $ 0.14