Quill possesses no powers or superhuman abilities, but this isn’t to say that he doesn’t have value. Having been raised by Yondu and the Ravagers, Quill has become a skilled pilot and problem solver.
Star-Lord is hilarious, kind, and an exciting character to watch on-screen. However, Peter Quill is one of the weakest characters in the MCU.
At one point, the self-named Star-Lord could have been considered one of the most powerful entities in the universe, but that power was nixed when his father passed away.
As half celestial, Quill was granted immense power if he stayed with his father Ego, the living planet. However, that didn’t work out too well in Guardians of the Galaxy Vol. 2.
He is more of a brawler than an accomplished fighter, but with his quick wit and ingenuity, he can be a formidable opponent. This helps Star-Lord to be an adept strategist to pull off impossible tasks.
Unfortunately, Quill is arrogant, insecure, and has little self-control. As a result, these flaws will often slow him down or allow him to make decisions that will put others in danger-- or half the universe in danger.
Nevertheless, being driven by emotion has also proved valuable in keeping the ragtag team of Guardians together. Quill is sincere and cares deeply for his teammates, which acts as the glue that keeps the team so close.