Gagagashield

Normal Trap

Target 1 Spellcaster monster you control; equip this card to that target. Twice per turn, it cannot be destroyed by battle or card effects.

Rulings – Yugipedia

Printings:

Zexal Collection Tin: ZTIN-EN005 (Ultra Rare) - 2013-03-07
Super Starter: V for Victory: YS13-EN032 (Common) - 2013-06-14
Structure Deck: Order of the Spellcasters: SR08-EN038 (Common) - 2019-04-19

Prices:

Cardmarket: 0.12 €
TCGplayer: $ 0.10