Glitch!X!tale (Hate!X!Chara) and X!Sonictale Metal Sonic (also Sonictale Metal Sonic)
Basically X!Chara getting op along with another op chara/metal sonic, basically X!Chara go to a glitchtale alternative timeline then took a hate soul to become like that, then he meet X!Sonictale metal sonic who was stronger than him, unlike Xtale Chara he didnt got hurt by any Sonictale!Sonic or Classic!Sans attack and beated them, he even beated his Sonic (X!Sonictale Sonic), base Xtale chara could beat sans and other AU sanses too (we can see in underverse he wasnt that hurt and was perfectly fine) but he lowered his guard, while X!Sonictale metal sonic didnt had this problems since he has abilities that X!Chara didnt had, like X!Shield, and also was way stronger than Sonictale!Sonic compared to X!Chara and Classic!Sans, but with hate, X chara was too strong for X!Gaster, the only real problem was X!Sonictale!Eggman, but X!Sonictale!Metal Sonic and Hate!X!Chara with both of their efforts beated all of them, they also meeted Sonictale!Sonic and Classic!Sans, but Hate!X!chara one shotted them with X!Sonictale!Metal sonic without effort lmao, they good friends with Classic!Chara, Betty, Sonictale!Metal Sonic, and with Paperjam/Error!Ink!Sans (i will tell paperjam story later, for Sonictale!Metal sonic story just check on deviantart trolololo)
And they also friend with Metal Sonic and Mephiles from Metal Sonic adventure (just an AU of sonic, not a undertale or sonictale AU, to know its story just go watch on my YouTube channel : Metal Sonic 4.1 the robot hedgehog)