Doorhinge’s Disappearing Dagger

When you cast this spell, one dagger you are carrying becomes magically imbued, and is then magically transported into the stomach of one creature. While this dagger is transported into the stomach a creature, as a bonus action (including the turn it is cast on) you may make an attack roll against the creature to attack it from the inside. On a hit, you deal 6d10 force damage, and the creature has disadvantage on all saving throws, ability checks, and attack rolls until the end of its next turn, due to the visceral pain it suffers from inside. As an action, a creature may make a constitution saving throw to expel the dagger from itself, ending the spell on a success.