What does spellcasting still need?/Spellcaster problems

[SaltedSalmon]

Spellcasting is currently viable, but there are still a few rough edges that I think should be sorted out.
I don't have it in me to make 10 more suggestion threads, but writing things down on discord quickly gets forgotten, so I'm making this thread here as a compromise.

Capital P Problems:
Modify Aura - Problem affecting Sorcerers, Shepherds and (to a degree) Defilers:
Touch attacks currently don't work with any spell aura, so there should be a option to cast a modified aura for each class.
Not sure how this affects hybrid classes like Nexus Champion.

Taint Spell doesn't work as a charge attack - Problem affecting Defilers:
Taint spell only deals extra damage to people at good morality, even though Defilers are also warring with the Transcended and other Demons.

Oddities:
Prayer and Invocation - Shepherd
A "you can't choose the default skill of your T2/T3 class" problem, but I guess I could throw it here.
I don't want Prayer as my default skill, if I could get Spellcraft instead then my Archon build would be perfect.

[Skouth]

Extra mana for trickster classes would go a long way
Just a little +10 mp would aid greatly in buffing up and stuff

[SharkyNebula]

healing spell would be cool

[SaltedSalmon]

healing spell would be cool

Problem:
You're gonna have to make up a new skill for Shepherd