You attempt to redirect the flow of the magic of a spell being cast within 120 feet which affects you. If the creature is casting a spell of 5th level or lower, its spell fails and you can begin to cast that spell at the level it was being cast at as your action on your next turn. When you cast a spell in this way, you don't expend a spell slot or material components. If you do not begin casting the spell in this way, the spell fades. If it is casting a spell of 6th level or higher, make an ability check using your spellcasting ability. The DC equals 10 + the spell's level. On a success, the creature's spell fails and you can redirect the spell as stated before.

At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, the interrupted spell is redirected if its level is less than or equal to the level of the spell slot you used.