[Autumn]

A regular normal mage -
>averaged out at around at 18 skill pool or less. This excludes the spell-book tome.

A regular void assassin -
>Averaged out at no more than 24 skill pools, This excludes spell-book tome.
-->Edit: I've made a mistake.
27, if you have Resourceful maxed out.


Considering into considerations that most critters will use GUI, SKI, and LUC. These three stats, will be high. Thus, they are given more pathway toward getting more skills. Where Mages, get almost exact same amount of skill pools with tome. Though, their as of this current system.
Autohits can be 'evaded', which reduces the effectiveness of Mages tremedously, as it would take more time to try and eliminate a target.

Not to mention, only Lightning magic can crit as all other magic school cannot.

The average mage should have 18-20 skill slots without spellbook, should they desire more skills they can equip a tome in their mainhand and grab Spellbook which gives 5 skill slots, 23-25 skill slots is quite enough for mages in my opinion, this only becomes an issue with skill slot intensive classes like Demon Hunter and Verglas, but these are the drawbacks of said classes.

On a sidenote, I've provided a picture of my Destiny Mage's skill slots, which seems to hold up enough for that class combo specifically.