Spellcasting is fundamentally reworked. Firstly, casting a spell now uses Spell Points and Spell Limits instead of Spell Slots, secondly, spells now always require the caster to roll a Spell check that influences Spell attack rolls and replaces the Spell Save DC to turn it into a contest, and thirdly, it is now possible to cast multiple spells a round and even upcast spells further than before through Overcasting, though the spellcaster takes damage and risks Weavestrain by doing so.

Additionally, Spellcasting has been supplemented with Caster Training to offer novel ways of interacting with spells and customize the character. The inner workings of Spellcasting Foci have been changed as well to give a bonus when casting spells of specific schools. Cantrips have been reworked to not scale automatically, instead, they can now be upcast. Also, Sunken Spells & Depthcasting have been introduced for automatic upcasting on negative Spell Point costs, which are achievable through Caster Training.

Some Spells have seen changes to fit with AC-less Defence, and some spells have been changed to interact with Wounds, as caused by Aimed Strikes. Similarly, the Rite of Regeneration has been added as a method of removing Disabilities. Some Spells have been changed to upcast better.

Spellcaster Level: There are five traits that scale with Spellcaster level now. These include the number of #Spell Points the caster has access to, their number of Caster Training features and Caster Proficiency Bonus (both are equal) as described below, and their Spell Limits, as shown in the table below.

Level	Caster Proficiency & Training	Spell Limits	Spell Points	+1/3	+1/2	+2/3
1	2	3	6	8	9	10
2	2	4	12	14	15	16
3	2	6	18	20	21	22
4	2	7	24	26	27	28
5	3	9	30	32	33	34
6	3	10	36	38	39	40
7	3	12	42	44	45	46
8	3	13	48	50	51	52
9	4	15	54	56	57	58
10	4	16	60	62	63	64
11	4	18	66	68	69	70
12	4	19	72	74	75	76
13	5	21	78	80	81	82
14	5	22	84	86	87	88
15	5	24	90	92	93	94
16	5	25	96	98	99	100
17	6	27	102	104	105	106
18	6	28	108	110	111	112
19	6	30	114	116	117	118
20	6	31	120	122	123	124
x	0.25(x+7)	1.5(x+1)	6x	6x+2	6x+3	6x+4

The columns to the right of the spell points column show how many Spell Points spellcasters with half levels and third levels have access to, for example when having Ranger or Arcane Trickster levels. Generally, you gain 6 Spell Points per Spellcaster level, 3 Spell Points per Halfcaster level, and 2 Spell Points per Thirdcaster level.

The numbers are calculated through the formulas given in the last row. The results are always rounded down.

Caster Proficiency Bonus: In addition to the regular Proficiency Bonus, spellcasters also use a Caster Proficiency Bonus. This bonus replaces the Proficiency Bonus when it comes to some Caster Training features and depends solely on the spellcaster level. If the spellcaster level is equal to the character level, the Caster Proficiency Bonus is also equal to the regular Proficiency Bonus.