Superheavy Samurai Soulfire Suit

Level 2 FIRE/Machine Effect
800 ATK / 800 DEF

You can target 1 "Superheavy Samurai" monster you control; equip this monster from your hand or your side of the field to that target. Its Level becomes 5. During either player's turn: You can discard this card, then target 1 Defense Position "Superheavy Samurai" monster you control; until the end of this turn, it loses 800 DEF, but cannot be destroyed by battle or by card effects.

Rulings – Yugipedia

Printings:

Duelist Alliance: Deluxe Edition: DUEA-ENDE3 (Super Rare) - 2014-09-11
The New Challengers: NECH-EN010 (Common) - 2014-11-06
2015 Mega-Tin Mega Pack: MP15-EN134 (Common) - 2015-09-17

Prices:

Cardmarket: 0.11 €
TCGplayer: $ 0.11