Valda's Spire of Secrets
1-level Transmutation
This spell accelerates or decelerates an attack (see the chosen effect below) the instant before it strikes, lessening or multiplying its force.
Accelerate. The target takes an extra 2d6 damage from the attack. This extra damage is the same type dealt by the triggering attack.
Decelerate. Reduce the damage the target takes by 2d6 (to a minimum of 0 damage).
* - which you take when you see an attack roll hit a creature within 60 feet of yourself
The extra damage or reduction in damage increases by 1d6 for each slot level above 1.