Even the Pro-Heroes with the most powerful Quirks in My Hero Academia have to rely on support items at one point in their career. Support items are high-tech tools that heroes add to their arsenal to either give themselves an offensive edge in battle, or to aid them manage their Quirks better. Support items can spell be the difference between a completely useless Quirk, and one worthy of a Top 10 Hero.
Source：https://www.cbr.com/my-hero-academias-best-support-items-and-users-ranked/
