What if Lucy (Elfen Lied) was in your verse?

[XSOULOFCINDERX]

This EoS Lucy being used. She gets resurrected in your verse by some unknown means (COUGH wasn't me COUGH.) and is aware of exactly how she died so she knows the extreme she can push herself to without dying.

R1: Speed Equalized and spawned in a Random Position near the beginning of the series (where the story starts, not chronologically).

R2: Speed Equalized, Prior Knowledge and Spawns relatively near (farthest is 10 Miles Away) the Main Protagonist(s) in case she wants to seek them out.

 

[XSOULOFCINDERX]

Guess I'll start us off then....

In both Rounds, she absolutely Trashes FNAF aside from the Ghosts.

Halo
R1: She ******* obliterates literally everybody except for The Flood and even they have Trouble with her. When (not if) ONI catches on to her she's gonna murder them if they try anything stupid against her.

R2: Noble Team gets the Easiest W of their Lives since she can literally rip The Covenant Super Carrier to Shreads. I honestly don't think The Covenant can handle her being on Reach, so.... guess Reach survives or at least lasts a fuckton longer than it originally did. Master Chief gets easy Wins in his stuff too now because he probably has Noble Six with him alongside Lucy thanks to her maybe saving them from the Covenant Cruiser. She just obliterates the Didact with no Difficulty.