Quoting sratner, reply 2Many of the spells need a time limit
Why? That is a personal preference, I like that most spells except 1 spell I never use lasts the entire battle, actually makes them important, but also makes spell resistance important!.
personally i want the role of support mage to exist
when i play proci i dont ever use 1 offensive spell
so spamming healing all the time isnt that fun and i made all buffs short duration and more strong so you can really use them as they were attacks (like greatly buffing dmg for 1 turn etc)
apart from this buffs and debuffs lasting too long is unbalanced because they are too good if casted by non mages
right now you dont want a mage with haste
you want a WARRIOR with haste, because haste just matter for 1 turn, after that its better having a warrior, ofc this could be solve making buffs more dependant on the caster, like dmg spells are
this is a plain nonsese, mages should be the best casters
last but not least monsters sometimes makes op combo
if you fight a darkling with a warrior and you get blinded its game over
how can that be fun? at least witha duration you have a window to take down your opponent