Tonk's Reflective Mirror

You attempt to reflect a magic projectile (e.g Fireball or Lighting bolt). If the creature is casting a spell of 4th level or lower, its spell is reflected and the caster must act as they are being hit by the spell.. If it is casting a spell of 5th 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 is reflected and sent back to the caster.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the spell is reflected if its level is less than or equal to the level of the spell slot you used.