One For All : Transferred to him from Toshinori Yagi (All Might) , Izuku's Quirk allows him to stockpile an enormous amount of raw power, allowing him to significantly enhance all of his physical abilities to various boundless levels. This results in unbelievable levels of strength, speed, stamina, agility, and durability. Izuku can focus the stockpiled power into a single body part, or spread it across his entire body evenly.