Conjure Rocket

You make a complex pattern of hand motions and call out to the infernal depths, you summon a magical Rocket of fire. The target must make a Dexterity saving throw of your spell save DC, on a failed save the target takes 4d12 fire DMG, and take 3/4 of the DMG (round down) on a successful save. When the rocket hits the target it also emits a bright light for 10ft and dim light for the next 50ft, and anyone in a 15ft sphere, must make a strength saving throw against your spell save DC or fall prone to a shock-wave including yourself.