Equip only to a "Koa'ki Meiru" monster. During damage Calculation only, monsters that battle with the equipped monster lose ATK equal to the equipped monster's Level x 100. If the equipped monster would be destroyed during the End Phase, you can send this card to the Graveyard instead.
![Iron Core Armor [SOVR-EN053] Common](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/4c750c3d-88e9-5846-ac03-0019f56ad65b.jpg?v=1698540867&width=1445)