Night Master

As an experienced nightstalker you have learned complicated and fiercely guarded traditions that channel your mental energy through demanding techniques which unlock magic by manipulating the physical world.

You can spend exertion to cast any spells from the air, earth, fear, fire, movement, obscurement, plants, poison, senses, shadow, transformation, unarmed, or water schools at the cost of 2 exertion per spell level. You use your focus save DC for spells cast this way, and your spell attack modifier is equal to your proficiency bonus + your Wisdom modifier.