Purchase Spells (Su)

Starting at 2nd level, a prophet of Kalistrade can cast spells not normally available to him by expending a certain amount of gold. A prophet of Kalistrade can spontaneously cast any 1st-level spell he knows—even if he has expended all of his spells for that day—by sacrificing 500 gp worth of currency (gp, sp, and so on) or gems. If the spell has a material component cost, it is added to the base cost of this ability. Currency or gems used in this way must be on the prophet’s person, and goods other than standard currency or precious gems cannot be sacrificed to use this ability. Casting a spell in this way does not expend any of the prophet’s uses of spells for that day, and once sacrificed, the currency spent to use this ability cannot be retrieved in any way—the money has effectively disappeared forever.

At 4th level, the prophet of Kalistrade can cast a 2nd-level spell he knows by sacrificing 1,500 gp. At 7th level, he can cast a 3rd-level spell by sacrificing 3,000 gp. At 10th level, he can cast a 4th-level spell by sacrificing 5,000 gp.