What's the point of Physical and Magic Damage Types

[Rolder50]

Goligee why would an ability that visibly looks like magic do physical damage? Proved my point.

And "delivers an attack' could be interpretted as "magical attack". Why the hell do they not just clearly label abilities as "Physical" or "magical"? Jesus Christ.

Or even simpler, have the popup numbers for physical damage be one color, and magic a different color. Boom problem solved, even if tooltips could still use some work