real clever bud.

Friction Channeling

At third level, you gain a new resource called Friction Charges, and for every 10 feet you move during combat, you gain one Friction Charge.  If you dont move at least 10 feet on a turn you lose all of your current Friction Charges. You may hold a maximum amount of Friction Charges equal to three times your monk level.

Static Smite

Also at third level, when you hit a creature with an Attack, you may expend two Friction Charges to deal lightning damage to the target, in addition to the attack’s damage. The extra damage is 1d4 for 2 Friction Charges, plus 1d4 for every additional 2 Friction Charges, to an unlimited maximum.

Thunderous Surge

When you reach level 6 in this subclass you may use a bonus action on your turn and expend up to 4 Friction Charges to gain ki points for the same amount expended. Doing so does not let you generate Friction Charges until the start of your next turn.

Lightning’s Burst

At 11th level in this subclass, you may spend 5 Friction Charges to take one additional action for one turn. This may only be done once per long rest.

Electric Barrier

When you reach 17th level in this subclass, every time you get hit, but when the damage is not fully calculated yet, you may use your reaction and expend an amount of Friction charges up to your monk level. and for every two that you expend, you reduce the incoming damage you take by a roll of your martial arts die.