Vylon Cube

Level 3 LIGHT/Machine Tuner Effect
800 ATK / 800 DEF

If this card is sent to the Graveyard for the Synchro Summon of a LIGHT monster: You can add 1 Equip Spell Card from your Deck to your hand.

Rulings – Yugipedia

Printings:

Duel Terminal 5a: DT05-EN030 (Duel Terminal Rare Parallel Rare) - 2011-05-29
Hidden Arsenal 5: Steelswarm Invasion: HA05-EN015 (Super Rare) - 2011-12-01

Prices:

Cardmarket: 0.24 €
TCGplayer: $ 0.36