[3rd POV]
After the rather...irritating conversation with Ozpin and Glynda, Gwen had returned to her room, annoyance clear on her face as she was going over the conversations she had with the two. The conversation had went about as she expected it to, but it was no less annoying.
The girls hadn't gotten back yet, probably exploring Vale at this point, or continuing their team training, either way, Gwen was left alone in her room, sitting bored as she finished the book she was reading when Ozpin so rudely interrupted her.
Glancing around the room, Gwen inwardly wondered if she should accept one of the otherworldly quests, not only for the NL Tickets she would naturally get, but also for the power she'd get from it. Thanos was the one she was mostly contemplating, not only for absorbing his body and gaining his power, but also to yoink the infinity stones.
She wouldn't take the mind stone, mostly for Vision's sake, as she couldn't create an alternative with the limited abilities she'd have there, not within the time she had in that universe, as she (after asking the system) came to the understanding that after completion of the mission, she would only stay within that universe for a maximum of 1 more minute, giving her not enough time to make an alternative for Vision.
That, and she still had to figure out how to sever the connection between that universe and the Infinity stones, and a way to use the infinity stones in every universe instead of only one. Something she didn't exactly have an answer to, as they were the literal personifications of their different concepts of the MCU, not something she could simply tinker with and change.
Killing Thanos himself would be...easy enough, due to her senses giving her an easy way of dodging his attacks, and her adamantium claws being a clear way of killing the man. As even he couldn't block them, with only his comic self having a slight chance, and even that was unlikely. Uru of the MCU was enough to injure the man, same with Vibranium, so Adamantium mixed with a few other metals, should be more than enough to cleanly cut the Mad Titan.
With that in mind, Gwen breathed in and inwardly spoke to the system 'System, initiate the otherworld quest "I am Inevitable" on challenge mode'
[Otherworldly Quest Beginning. Momentarily locking powers until the user complete the mission. Due to the nature of the users powers, and certain abilities, the users powers will be stronger once they return, roughly by 10% or so]
Blinking at this piece of information, Gwen grinned, realizing that she made the right choice, as her body began to brilliantly glow, and she disappeared from the universe known as RWBY, and time slowed to a crawl.
_____________________________________
[Earth 616 of the MCU Multiverse]
The first thing that entered Gwen's senses was the sounds of battle, of blades clashing, of screams, and of explosions. The sound of a large scale battle, one that Gwen had a feeling she knew, as she slowly began to sit up, grunting at the uncomfortable weakness that was filling her, a new feeling.
Her senses expanded as she realized where she was. She was in Wakanda, during the battle against Thanos's forces during the events of Infinity War.
Getting to her feet, she sensed the Mad Titan, the sight of Heimdall showing her the battle that was also raging on Titan, where the man was currently finishing his battle with the other forces, this being Iron Man, Starlord, Spiderman, Mantis, and a few others, all fighting tooth and nail to stop the mad titan, only to fail due to Peter Quill, aka Star Lord.
'This...is going to be easier than I expected' Gwen thought, realizing that she overestimated the Mad Titan, and the infinity stones of this reality. They were strong, sure, but not even remotely close to their comic counterparts. And due to him only having 5 of them, they were much weaker than they would be with all 6 of them.

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Spidergwen: I have a system?!
FanfictionAfter her death, a young woman is reborn in the world of Young Justice. But wait...why am I in jail?! Why am I Gwen Stacy, and what the hell is a Street level system?! ___________________________________________ Additional Tags - Harem, Yuri, Lesb...