[40k Warhammer] {"You wage an infinitely yet futile war against beings whose existences in itself regards you as nothing but Obstacles". (probably referencing to a large group of Something that their objective is pointless against beings like the Chaos god, yet they still wage it seems around right for Warhammer).
[Goblin Slayer] (cleared.)
[Undertale Au revise.] {" The outcome is already Predetermined Player"} (no outcome can be certain as even the smallest change can create a whole new possibility so how would this work)
[Avalon's} {"the King Returns with what in mind"} (depending on whose speaking it is probably 1 of the high guards of Avalon. Or 1 of his civilians who is aware of the return through politics)
[Baki] {"strongest what's strength without prowess"} (sounds like 1 of Christopher's ego-crushing lines he's good at that, but who would he be saying it to? Definitively speaking nobody in this world would seriously care for a line like that)
[Overlord.] {" I am a lord Of nothing You can comprehend"} (now who would say this specific line I'm thinking of a skeleton within a tomb if he wasn't such a pansy. He's a badass pansy but still a pansy)
[86 Eighty six] {"you are the spearhead nothing more nothing less merely expendable"} (this specific anime hits on topics revolving around death during service trauma and much more emotional topics)
[call of the Night] {"I am 1 of many faces yet none of certainty". } (I mean obviously, He can be a dragon a fucking werewolf or just a civilian hell Even in a 2 wing form he outmatches most things, so It really is accurate.)
[guilty crown] {"Crowns are meant for those of wisdom and power not a Jester With an Ego".} (he's probably Referring to the main character at the beginning not the end when he's a good character at the beginning he just almost intolerable)
Vermeil in Gold {"Akin to a mother are you or merely Pretending"} (pushing through an entire world with the greatest disaster I highly doubt it outmatches Christopher)
[Alderamin on the Sky] {"their infinity in possibility yet a limit to a tactic what you decide Inevitably overlaps".} (it focuses on tactics and strategy making it an interesting take considering most protagonists merely charge at the Threat and start beating it.)
[other Anime suggestions.]
[Mainstream]
[Jujitsu Kaisen] {"hmm you use energy like that it's a wonder why you're the 1 losing." } (he employs that he's beating somebody's ass well crushing their egos Seems around right, so I guess I can say he's confident in his dissection of their techniques.)
[Black clover] {"Grimore quite the gift for mortals to have". } (so a Grimoire is tailored towards what your personality is during your teenage years, so it gives you something you can probably use accurately since it's tailored precisely for you to use)