Vylon Tetra

Level 2 LIGHT/Machine Tuner Effect
900 ATK / 900 DEF

If this card is sent from the Monster Card Zone to the Graveyard: You can pay 500 Life Points, then target 1 face-up monster you control; equip this card to that target. If the equipped monster would be destroyed, you can destroy this Equip Card instead.

Rulings – Yugipedia

Printings:

Duel Terminal 6a: DT06-EN020 (Duel Terminal Normal Parallel Rare) - 2012-02-03
Hidden Arsenal 6: Omega Xyz: HA06-EN005 (Super Rare) - 2012-07-24
Battle Pack 2: War of the Giants: BP02-EN106 (Common) - 2013-06-28
Battle Pack 2: War of the Giants: BP02-EN106 (Mosaic Rare) - 2013-06-28

Prices:

Cardmarket: 0.15 €
TCGplayer: $ 0.12