Donari's Magic Mirror

As a reaction when a creature within 60 feet of you is targeted by a ranged spell attack of 6th level or lower, you conjure a 10x10 foot magical mirror which immediately blocks the spell from affecting the targeted creature. Make a spell attack using your spellcasting ability and proficiency modifier to then reflect the blocked spell to another target within range of it's spell requirements. Upon a hit the new target is affected by the reflected spell as described in it's description. Any modifiers or DC checks are made using the caster of the original spell's ability scores

When blocking a spell at 7th level or higher make a spellcasting ability check