1. What if Dekiru 10 were to combine One For All: Full Cowl - 100% with Diamondhead? It’s true that Izuku’s aliens allow him to better withstand One For All and use higher percentages, albeit with some backlash still involved. But Diamondhead’s skin is nearly indestructible. Every time Izuku makes a move, he would lose a limb. But his regeneration would immediately kick in. In addition, One For All's power is causing Diamondhead's regenerative abilities to become near-instantaneous. That combined with his already impressive strength and durability, makes for an unstoppable juggernaut. It would come in pretty handy when Vilgax comes.
