Mp5 / Hp5 scaling
I can't think of any champions or items in the game that gives an offensive or defensive scaling based on the champion's Mana or Health Regeneration.
Why is that?
There are obviously items in the game that increase a character's Mp5 and Hp5 totals overall, but nothing scales on it. Am I the only one who finds this odd?
I would imagine that this would be a good focus point for a top laner or a support.
Does anyone have any ideas for this?

and
also increase hp5 based on mp5.
