Arcanist

You study the arcane arts, gaining the following benefits:

• Increase your Intelligence score by 1, to a maximum of 20.
• You gain proficiency in the Arcana skill. If you are already proficient in the skill, you add double your proficiency bonus to checks you make with it.
• You learn the prestidigitation and detect magic spells. You can cast detect magic once without expending a spell slot, and you regain the ability to do so when you finish a long rest.

Note that if you choose to be a member of a Mage School, your cantrip and 1st-level spell may vary, according to the DM.

name = 'Arcanist'
description = "***Feat: Arcanist.*** You study the arcane arts. (If you are a member of a mage school, your cantrip and spell may be different than these given.)"
def prereq(npc): return True
def apply(npc):
    npc.INT += 1

    npc.addskillorexpertise("Arcana")

    spellcasting = innatecaster(npc, 'CHA', name)
    spellcasting.cantripsknown.append('prestidigitation')
    spellcasting.perday[1] = ['detect magic']