Malphite's Ult needs to scale with health
I don't know why a huge boulder-man charging fast at you, and ramming all of you out of his way is considered "Magical", but I think maybe there should be some kind of health scaling. Thematically, it just makes more sense.
EDIT: I'm getting downvotes because some people think that "it would take away from going full AP malphite and just 1 shotting people"... but my point was that it didn't fit thematically. Meaning with his theme. Meaning I wasn't talking about how much fun he is, or whether it would make him better/worse - I just wanted it to fit the theme of getting castrated by a giant rock, as opposed to getting castrated by a giant rock (with a wand).
I missed a few but you get the idea.

