The caster's hands erupt, emitting a bolt of lightning that inflicts electricity damage on a target, then forks, sending smaller bolts jumping to those nearby, which fork again. Each fork does less damage than the previous. Friendly fire possible.
The caster's hands erupt with a bolt of lightning that inflicts 20 electricity damage on the target, then forks, sending smaller bolts of 10 electricity damage jumping to 10 nearby targets, which fork again, sending even smaller bolts of 6.67 electricity damage to 4 nearby targets, which fork yet again, sending tiny bolts of 5 electricity damage to a final 4 nearby targets. Targets can be hit by multiple forks. Will not jump to friendly targets. Electricity damage also drains stamina equal to the amount of damage dealt.