Terrag's Sinister Trick

When you are about to take damage from any spell, you can choose to double the damage and pass it to any other creature, taking no damage yourself. The creature who cast the spell on you must make a DC 16 WIS saving throw to avoid this spell being redirected. On a failed save, the new target of the spell must make the same saving throw or take double the damage from the original spell. This new target cannot be the original spellcaster. If the new target also knows this spell, they can choose to double this spell's damage again, adding 1 to the DC for every time that the original spell is volleyed between casters.