Infinite Mind

Anything you can imagine is now within the realm of possibility. Add two common 10th-rank occult spells to your repertoire; you gain a single 10th-rank spell slot you can use to cast one of those two spells using psychic spellcasting. You don't gain more 10th-rank spells as you level up, unlike other spell slots, and you can't use 10th-rank slots with abilities that give you more spell slots or that let you cast spells without expending spell slots. You can take the Mind Over Matter psychic feat to gain a second slot.