Tumppi's Irresistible Correction

You attempt to influence a creature in the process of casting a spell by shouting another spell of your choosing from the same school of spells as the one being cast. If the creature is casting a spell of 2nd level or lower, its spell is instantly transmuted to the spell you named. If it is casting a spell of 3rd level or higher, it must make a Constitution saving throw against your spell save DC. On a failure, the creature's spell is instantly transmuted to the spell you named. On a success, the original spell is cast succesfully.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the interrupted spell is instantly transmuted to the spell you named if its level is less than or equal to the level of the spell slot you used.