Musings on Ability power

This was a stat that wasn't originally in DotA that I always thought had potential to be very cool but the game has only used predictably since. To start, ability power doesn't necessarily imply damage. The name is actually quite ambiguous and I believe that was on purpose by the founder devs. What if instead it could increase buff duration? AoE size? Projectile speed?

Some of this already exists but I wish there could be more of it. Modern league won't change this because it doesn't like weird scalings. However, I feel like it is in accordance with the spirit of classic (your thoughts on the matter are welcome). This mode is more comfortable with champions having access to more items. And crazy AP builds are familiar to this version of the game. I just wish it could be broken in a way that's not only insta-kills. I also think it's thematic with AP items often being non-weapons.

Here's some examples

Tryndamere

Mocking shout's attack damage reduction scales with AP

Undying Rage's duration scales with AP(!!)

Nasus

Spirit fire's radius and armor reduction scales with AP

Ashe

Volley and Crystal arrow's speed scales with AP