I encourage you to play Custom Battles if you're bored or upset at PvP.

If you're gonna keep hurting yourself over losing so much to a completely unbalanced mode, then please play Custom Battles and explore more What If stories users have created. This mode should provide you with hours of content to go over and likely talk or share about it here. I am just surprised that not many people here talk about what sort of creative What Ifs they have encountered

So please, if you have already gone through Story Mode and don't want to deal with PvP, go through Custom Battles. Maybe you'll find some users who'll make multiple episodes of an arc they're cooking up. This isn't a mode just to be creative, but to be interested into what others have created. With enough time, we would get even better created What Ifs and even more content to dive into.