You can only activate this card when a Attack Position monster on your side of the field that includes "Destiny Hero" in its card name is selected as an attack target. Change that attack target monster to Defense Position and equip it with this card (this card is treated as an Equip Card). This equipped monster cannot be destroyed as a result of battle.
![D - Shield [EOJ-EN054] Common](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/dee67309-89a2-51ae-b157-686756612ef3.jpg?v=1698547701&width=1445)