Arcanian Ricochet

The caster holds their hand out to the in the air with their ring and thumb touching. Blue arcane aura repells from the hand as the target ranged spell hits a aura wall. It bounces off into a direction  the casters yells out loud. Add 1d6 magic damage to the spells impact. If you do it preventively on someone you must pass a stealth check so they don't know you have casted it on them. If you fail they know, but if you pass the next time they use a touch, self or sight spell the effect is delivered to your choice of entity within 20ft of the caster (including caster) along with another 1d10 damage. All damage this spell does turns to radiant.