When an attack is made against you, whether it hits or misses, you snap your fingers and an arctic wind envelopes your attacker, dealing 2d10 cold damage on a failed CON save or half as much on success. Any creature within a 5ft radius of the target must also make a CON save, taking half damage on a fail or no damage on success.

When cast at higher levels, the damage increases by 1d10 for every spell slot above 1st