Koa'ki Meiru War Arms [RGBT-EN081] Super Rare

During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Warrior-Type monster in your hand. Once per turn, you can select 1 Level 3 or lower Warrior-Type monster in your Graveyard and equip it to this card. This card gains ATK equal to half of those equipped cards' combined ATK. If this card would be destroyed by battle, the equipped monsters are destroyed instead. (There is no limit to the number of monsters that can be equipped to this card.)