Devastation's Missile Swarm

You can target one creature and then an additional creature per spellcasting ability modifier, for example a caster with 18 Intelligence has a spellcasting ability modifier of plus four, therefore, five targets in total. You create a cluster of three glowing darts of magical force. Each cluster hits a targeted creature of your choice that you can see within range. A dart deals 1d4 + 1 force damage to its target, therefore a cluster deals 3d4 +3 force damage. The darts all strike simultaneously. You cannot target a creature more than once per casting of this spell. The spell is treated as a standard magic missile spell for the 'Shield' spell defence.