Marvel: I Became Homelander by Sacrificing Items
"In New York City, it's perfectly normal for Mr. Arbiter to have several female friends," Scarlet Witch declared matter-of-factly.
Ghost-Spider, Black Cat, Mistress Death, Quake, and the other heroines all nodded in agreement.
...
Reincarnated into Gwen Stacy's universe as Peter Parker, our protagonist finds himself in a rather unfortunate situation.
Not only does he fail to become Spider-Man, but he's also inherited a storyline that practically guarantees his death. Needless to say, Peter is freaking out.
Fortunately, he awakens the Sacrifice System, which allows him to sacrifice items associated with Marvel characters in exchange for points to strengthen himself.
The remains of a radioactive spider, the Mark I Iron Man armor, Black Widow's skintight bodysuit, the Heart-Shaped Herb, wreckage from a Chitauri spacecraft, an Asgardian warrior's armor...
Sacrifice them! Sacrifice them! I'll fucking sacrifice everything!
Rewards obtained: The Twelve Talismans, Zanpakutō, the Six Powers, Rinnegan, Kamen Rider Drivers, and countless other abilities from across the multiverse.
He starts out keeping his head down in New York City, determined to survive. By the end, he's become a force of nature who makes Homelander look tame.
Peter: "I can do whatever the fuck I want! Hey, you purple potato! What are you staring at? Come fight me one-on-one!"
Before Thanos can even respond, all the heroines turn toward Peter at once.
"One-on-one? With me?"
Peter: "???"