Chain Lightning
Casting Time
Range
Target
One creature or object (primary) and up to three additional
Components:
three pins, piece of glass, piece of fur
Duration:
Instantaneous
Saving Throw
Dexterity halves
You fire a bolt of electricity at the primary target that deals 10d8 lightning damage. Electricity arcs to up to 3 additional targets you choose that are within 30 feet of the primary target.
Cast at Higher Levels
An extra arc leaps from the primary target to an additional target for each slot level above 6th.
Source