Pip

Pip the Troll was not always a troll.  He was once a boozing more-or-less humanoid prince with just one talent: painting starscapes.  One night, Pip drank and partied with a band of Trolls and the next morning, he woke up as one.  There's a moral tale for the young folk!  Pip is by and large a foul mouthed, cigar smoking misogynist with little respect for anyone or anything but Adam Warlock.

Pip the Troll became a traveling rogue who would fatefully encounter Adam Warlock in a prison dungeon of the Universal Church of Truth (empire of The Magus), becoming Warlock's companion and ally (though Pip never really managed to contribute much).  Pip accompanied Warlock on many adventures, during which they would recruit another ally, Gamora the deadliest woman in the universe and would even team up with Thanos himself to defeat The Magus, Warlock's evil future self. 

Not too long after the Magus' defeat, Pip became separated from Warlock and had one solo adventure where he encountered Thanos' brother Starfox.  Soon after, while looking for Warlock, Pip found himself on his former ally Thanos' ship, trusting that Thanos was still an ally and would help him find Warlock.  Pip was wrong and Thanos grabbed Pip and destroyed his mind, leaving his brain dead body for Adam Warlock and Captain Mar-Vell to find.  Warlock took Pip's soul into his soul gem and for years to come Pip's spirit would make appearances any time anyone ventured into soul world.

Years later, with Pip, Gamora and Warlock himself all dead and living peacefully in Soul World, they would be visited by the Silver Surfer and Drax the Destroyer, bearing news of Thanos' return.  This news caused the three spirits to have themselves reanimated in the land of the living by inhabiting bodies of three recently deceased humans.  Pip helped Warlock gather his heroic forces to combat Thanos during the Infinity Gauntlet but did not join them in battle, instead staying behind in Dr. Strange's mansion and giving his servant Rintrah stress headaches.

After the Infinity Gauntlet ordeal, with Warlock in control of the gauntlet but forbidden to use the gems in unison, Warlock invited Pip to join his new team, The Infinity Watch alongside Gamora, Moondragon and Drax the Destroyer.  Pip was granted the Space Gem, allowing him to teleport himself and others anywhere in the galaxy he could think of.  Pip kept his gem between his toes for safe keeping.  Still not much help in combat, Pip's powers would mainly allow him to fight dirty and unfairly by teleporting behind or above foes and dropping things on their heads.

King of the Universe

Eventually the Infinity Watch disbanded as their gems disappeared.  Following the Watch's dissolving, Pip would almost completely fade into obscurity.  A little over a decade (readers' time) later, he would appear a few times in She-Hulk, somehow still able to teleport.  It is explained away as the space gem's abilities somehow having rubbed off on Pip, so he can still do it without the gem.  Pip teleports throughout the galaxy picking up She-Hulk and others with superhuman strength to combat the Champion of the Universe, and later appears to retrieve She-Hulk and other key witnesses in a court case brought against Starfox for sexual misconduct.

Various Marvel Universe Handbooks suggest that Pip has slightly superhuman strength but little if any proof exists of this in the actual comics beyond him dropping rocks on people that sure do look heavy but aren't so huge that a fit average person couldn't heft them for a brief period of time.