Way of the Lightning Body are a select few Monks who specialise in the art of multiple attacks, becoming a speeding blur that hits their enemies as many times as possible. As they level up, they become faster and more efficient with their chosen weapons.

Way of the Lightning Body Table

Level	Number of Lightning Weapons	Number of Lightning attacks (Max)
3rd	1	1
4th	1	1
5th	1	1
6th	1	2
7th	1	2
8th	1	2
9th	1	2
10th	1	2
11th	2	No maximum
12th	2	No maximum
13th	2	No maximum
14th	2	No maximum
15th	2	No maximum
16th	2	No maximum
17th	2	No maximum
18th	2	No maximum
19th	3	No maximum
20th	3	No maximum

Lightning Weapon Attack

Starting at 3rd level, you have mastered the art of multi-attacking with a weapon of choice. Choose a simple weapon (you can also choose Longbow). This becomes your Lightning Weapon. If you make an attack using your Lightning Weapon, you can make a second attack by expending 10 ft. of movement, called a Lightning Attack. Your Lightning attack has Disadvantage unless you have a Dexterity score higher than 17. You gain more Lightning Weapons and Lightning Attacks as you level up, as shown in the Way of the Lightning Body Table above

 

Swift Soul

Starting at 6th level, you can spend 4 ki points as well as 10 ft. of movement to make another Lightning attack

Lightning Dash

At 11th level, your proficiency in fast movement allows you to make quick dashes at your opponents. By expending 6 ki points, you can perform a Lightning Dash. Choose a direction. You dash 25 ft. in this direction (without using your movement speed). Creatures within 5 feet of you at any point of the dash must make a Dexterity Saving Throw (DC= your Dexterity Score- Creatures Dexterity Bonus). On a success, the target evades the shot and takes no damage. On a fail, the target takes 3d6 + your Dexterity Score + your Proficiency Bonus Bludgeoning damage (you can instead choose to do slashing damage if you have a Lightning Weapon that does so). If the save fails by 5 or more, the target is dragged to the very end of your dash range and then thrown an additional 10 feet.

Art of the Lightning Blur

Beginning at 17th level, you have learned to master your attacks with your Lightning Weapon. At the end of the turn, all creatures you have dealt damage to with one of your Lightning Weapons must make a DC 18 Dexterity Saving Throw. On a success, the creature is lifted 5 feet into the air. On a fail, the target takes 2d6 Force damage and is lifted 20 feet into the air (damage does not include fall damage, which still applies).

Relentless Strikes

Beginning at 11th level, you can now use the Swift Soul trait as many times as you want per turn, as long as you expend the required ki points and movement speed for each extra Lightning Attack you make.