Your problem is that you see D&D as a war game, not a a ROLE playing game.
If i an playing war thunder with me 262, i wanna feel like i an piloting that plane even if the game on non simulation setting is way generous with G force and etc. At the same way, if i an playing D&D as a necromancer, i wanna feel like i an a necromancer.
That said, if you have one party member being ludicrous more powerful than another, is due GM's fault. On most cases, wizards can go to shop and come back with ludicrous high amount of deadly spells that any non chaotic place would try to ban.If even on US is hard to get anti materiel rifles(some cases are considered DD) and a grenade launcher(always DD), why in a fantasy city getting a fireball scroll would be easy?I can picture every non chaotic major city outlawing spells like Finger of Death, Knock, Fire ball, etc.
On pathfinder kingmaker, the scrolls available on your barony shop is tied to his "arcane" rank and before you can raise arcane, you need to raise your domain divine.
I will re write your sentence "casters are op" to "wizards when they can get a complete spellbook with all spells in existance and have time to rest after every encounter are OP"
Warlocks, should get only spells that makes sense that his patron will teach him. A warlock who has Raven Queen as Patron for eg, should't cast wall of light. Same with a sorcerer, a sorcerer with golden dragon bloodline casting frost spells 24/7 would make no sense.
Last edited by SorcererVictor; 04/04/20 12:17 PM.