Bloodboil

You point at a creature within range, they must make a Constitution saving throw or their blood begins to boil, this persists for 2 rounds, and at the end of the target's turn they take 6d8 fire damage, additionally their movement speed is halved and they have disadvantage on Dexterity and Wisdom saving throws for the duration, or half as much on a success, and the spell ends. They may repeat the saving throw as an action at the start of their turn.