Regarding the section about matchups, in fighting games there's a player called Snake Eyez who uses Zangief who has a losing matchup against nearly the entire cast. Despite that he's won regionals vs some of the best of the best. Matchups only really matter at the highest level unless it's really really bad I doubt there's stuff that just can't be outplayed and is auto unwinnable especially if the players you're facing aren't like some of the top in the world of that character/role.

Gg wp bro❤