Izuku Midoriya, also known as Deku, from the anime and manga "My Hero Academia," primarily possesses one main quirk called "One For All." This quirk allows him to inherit the power of previous users and grants him enhanced strength, speed, and agility.
Throughout the series, Deku also learns to use various techniques and abilities related to One For All, such as enhancing specific body parts and using different percentages of its power. Additionally, he gains knowledge about the quirks of previous users of One For All, which he can utilize in strategic ways.
As of my last knowledge update, he has not developed multiple distinct quirks; his abilities primarily stem from the One For All quirk. However, the story may continue to evolve, so it's always good to check the latest chapters or episodes for the most current developments.