Spikeshield with Chain

Normal Trap

Target 1 face-up monster on the field; equip this card to that target. It gains 500 ATK. If the equipped monster attacks or is attacked while in Defense Position, it gains DEF equal to its ATK during damage calculation only.

Rulings – Yugipedia

Printings:

Cosmo Blazer: CBLZ-EN076 (Common) - 2013-01-25
Battle Pack 2: War of the Giants: BP02-EN214 (Mosaic Rare) - 2013-06-28
Battle Pack 2: War of the Giants: BP02-EN214 (Rare) - 2013-06-28
Speed Duel GX: Duel Academy Box: SGX1-ENC19 (Common) - 2022-03-17

Prices:

Cardmarket: 0.08 €
TCGplayer: $ 0.09