You all are under-estimating the All high lord Discord!
https://www.youtube.com/shorts/y-aOWiHb7uU
Discord took a multiversal collision like it was a tickle, his dimension technically is above the laws of physics, planned to spread chaos in 616 with cosmos (a Marvel's universe ), able to rip the very fabric of reality (says in in the show), can create alternative dimensions as a joke, able to manipulate the Dreamscape ( princess luna had said discord had blocked the access to his dreams), said Sombra could never hurt him and actually Sombra is really strong at least as an Alicorn but not as 2 Alicorns so he literally said an Alicorn could never hurt him and Alicorns have at least infinite destructive Power and Sombra is superior to infinite destructive Power since he is stronger than an Alicorn and others feats, also, he is able to break the fourth wall, knows that he is in an episode, or manga, or comic, changed the very plot and narrative of a Manga as well... The comics share an cosmology with H.P Lovecraft, Transformers and Greek Mythology.
Discord pulled out the entire script of the MLP comic once too, so it would mean that he has access to our world.
Discord can also turn into Accord, who is completely immune to the Elements of Harmony.
Also, Thanks to the fact that there is an endless hierarchy of dreams in MLP, Discord could potentially scale up to 1-b, he also gains more power by the chaos he creates.
Discord I would scale him to high Outerversal due to him being able to change the very genre of the book he is in and is able to pull a whole script of the comic book he’s in so he is able to go past dimensionality so that would scale him to high Outerversal.
Also this is more!
https://www.youtube.com/watch?v=1bVvzoDfcu0
He is not just a god, he is the whole concept of Chaos, he is an Abstract being, the embodiment of Chaos, you can not destroy chaos, to destroy Discord, you will have to destroy they very concept of Chaos itself, which would not work because it would only cause more chaos.
This is evidence all from comics too,
Discord has survived forms of erasure, as well.
The "Marks in Time" expansion card "Discord, Dubious Intent", which alludes to Bill Cipher by referring in this; "I kept hearing these epic stories of defeating the bugbear and banishing the changelings, so I thought, what the hay, I'm sure my Friends would absolutely ADORE the Chance to tussle with an evil interdimensional triangle wearing a tophat! Oops?"
So hence, Discord knows that Bill Cipher exists, and even brought him to Equestria, also, the Cards are Canon to the Show.
So, Discord is the best, and NOT Galaxy level, WAY HIGHER!!!
HAIL DISCORD HAIL DISCORD.
You all are in a way Right, Discord has his weaknesses, but his streangths are too much!
Also the References to Bill Cipher are only there because I posted this on reddit, and was too lazy to edit it.
Also, Chaos FUELS Discord, what is more Chaotic than Marvel? Yeah, so, he would be totally Buff in Marvel.
Unless you all people come up with counter-attacks, I will keep my statement, because I am giving evidence from the Comics and Manga's of MLP:FIM...
HAIL DISCORD THE GOD OF CHAOS OH MY GOD DISCORD COME TAKE ME AWAY I WANT TO BE YOURS DISCORD I LOVE YOU DISCOOOOOOOOOOOOOOOOOOOOORD!!!!