Vylon Sigma

Level 7 LIGHT/Fairy Synchro Effect
1800 ATK / 1000 DEF

1 LIGHT Tuner + 1 or more non-Tuner LIGHT monsters
When this card declares an attack, if it is the only monster you control: You can equip 1 Equip Spell Card from your Deck to this face-up card.

Rulings – Yugipedia

Printings:

Duel Terminal 5a: DT05-EN039 (Duel Terminal Super Parallel Rare) - 2011-05-29
Hidden Arsenal 5: Steelswarm Invasion: HA05-EN024 (Secret Rare) - 2011-12-01

Prices:

Cardmarket: 0.71 €
TCGplayer: $ 0.30