Variant: Spell Points

This feat is for the "Variant: Spell Points" in Chapter 9 of the DMG.

The Spell Points by Level table applies to bards, clerics, druids, sorcerers, and wizards. For a paladin or ranger, halve the character’s level in that class and then consult the table. For a fighter (Eldritch Knight) or rogue (Arcane Trickster), divide the character’s level in that class by three. Choose either Full Caster, Half Caster, or One-Third Caster.  

Full Caster Classes. Bard, Cleric, Druid, Sorcerer, Wizard.

Half Caster Classes. Artificer, Paladin, Ranger. 

One-Third Caster Classes. Fighter (Eldritch Knight), Rogue (Arcane Trickster).