Chaos Dart

You snatch a singular piece of would-be Magic Missile and cast it in middle of it having an actual form. Make a ranged spell attack against the target. On hit, the creature takes 2d4 damage. Choose one of the d4s. The number on that die determines the attack's damage type, as shown below.

d4             Damage Type

1               Acid

2               Fire

3               Lightning

4               Force

     If you roll the same number on both d4s, the chaotic energy leaps from the target to a different creature of the casters choice within 30 feet of it. If this happens, the new attack is an automatic hit. Make a new damage roll, which can cause the dart to bounce again. 

     The spells damage increases by an additional 1d6 added to the usual damage when you reach 5th level (2d4+1d6), 11th level (2d4+2d6), and 17th level (2d4+3d6).