Combustion

With a violent clasp of your fist, flames swarm up and around a creature. Chose a creature you can see within range. It must make a dexterity saving throw. If it fails the saving throw, it takes 5d6 fire damage, and its body is wracked with pain from fire coursing over its body. If the creature takes damage from this spell it must use its reaction to move its speed in a random direction. To determine the direction, roll a d8 and assign a direction to each die face.