I’ve noticed when deciding if i should take nodes that influence mana costs that a lot of the times i have to quit the menu and check the cost.
My sugestion would be to have the same tooltip for the skill in the “skills and specialization” menu, as well as allowing for u to tab and see details.
A third sugestion would be to make the “juicy” nodes bigger, i.e. stuff that increases your number of minions/pets or changes how ur skill works (eg. hammers). This would allow for an easier identification and specking of points u find interesting, especially when your starting off and just want to play a character archetype while not beeing too woried about “min-max”.