Specialist School
Source
Galactic Magic pg. 40
When you regain your daily spell slots, you gain one additional spell slot of the highest spell level you can cast. At 12th level, you also gain one additional spell slot for your second-highest spell level you can cast. You can use these bonus spell slots only to cast necromancy spells.
Dragonscript
ID
426130ba43982b81a894d0b6