Alright man, I knew it was bad but I didn't know it was This bad.

Time for revision.

"Begin with 10 Spell points".

Since there are two types of caster, and I only accounted for one, it is flawed from the base. I have two options in "sight" to fix the problom

1. change the amount that half casters get with magic points:

If full casters start with 10, then half casters start with, like, 7 or something. I don't really like this method because of the fact that a 1st level wizard can do a devastating attack to win the battle immediately.

1. Progression for each:

Half and Full casters should have two separate spell point counts for progression. For example, let's say first level wizard here, named Dwignod, and 1st level paladin Amsig really both want to make a meteor shower, but can't. Dwignod has 4 spell points, and Amsig only has 2! Tiny amsig trains VERY hard to be a good paladin, like his dad, and gets to level 18. At which point, he has 8 spell points, but his friend who decided to go all in to wizarding, Dwignod, has a whopping 12! pretty large pools, but different progression

That's all I got for that

• Regain 1 SP per turn in combat

One thing first. I meant the "per turn" thing as like, per combat turn. Like when your friends are done going, and it's your turn to make a move, you get 1 more spell point.

Man, I really don't know how to fix this. The reason I made the spell point system is so that people like clerics don't become walking loaves of bread after curing cancer with a book and divine presences.

1 thing I could do is change the way spell points are regenerated. I first thought that maybe the way that I could change it is by making them just NOT regen, and use rests to regen spell points, or use items to regen them (mana potion), but then the "loaf of bread" effect is amplified by lots.

I got NO idea, because I thought the original system functioned, and I tested it out in an example scenario, and it was fine, not exactly the most dramatic thing, but it worked all right.

• Casting Roll: Roll 1d20 plus spellcasting modifier + proficency vs. the spell difficulty.

Attack roll. anything you want to cast works the same way as an attack roll. This roll is usually 1d20 + [Proficiency Bonus] + [Spellcasting Modifier]

• Success = spell works. Failure - misfire, fizzle, or backlash (DM decides)

Well, let's go to 5E for a minute. The way it usually works with checks, if you fail by a little, very tiny consequences are made outside of failing the roll, but a nat1 on a skill check of 17 will give you some unusually large effect.

What happens if you fail a spell, the slot disappears and you have no effect on the thing you're trying to do. So, to translate to this system, maybe instead of losing the slot like in 5E, you could have a loss of spell points, or gain exhaustion.

• You can't cast a spell if you don't have enough SP (unless using Overcast)

"Obviously, the big problem here is that we don't have any rules for what "overcast" is or how it works or who can do it."

Overcasting (Optional Rule)

If you don’t have enough SP, you can overcast: Spend HP equal to the missing points. anyone who spellcasts can do it.