Thunder blade

your history and knowledge of training in the storms have lent you the powerful skill of lightning to be added to your blade

Storm Blade

 At third Level You have learnt how to add the effects of the storms from the  mountain to your blade.
Thunderous strikes(Concentration):
as a bonus action you body begins to vibrate extremely making a low hum in the air static sparks can be seen coming of your blade add 1d8 thunder damage for 1 minute every strike you make makes a thunderous boom that can be heard from 300ft away.

Lightning Arc:
As an action you expend all your movement+15ft in a straight line along the ground making a single attack to 2+(amount of attacks you would have from the attack action), all creatures that are damaged take lightning damage instead of the default damage type(magic weapon extra effects are unaffected by this change) and at your end point release a static discharge in a 5ft radius 2 lightning damage.
Note: only does the default weapon damage no applied buffs can be modify the attack during this action the only exception is a magic weapon.
Note: conductive liquid/solid if come into contact along the attacking path stops the attack at that point and causes 1d6 lightning to all creatures in the conductive liquid or solid

these abilities(Lightning Arc, Thunderous strikes) can be used twice in total between the two abilities at 3rd level,  three times at 7th,  4 times at 14th level.
All expended uses Restored on a long or short rest

Lightning speeds

At 3rd level Your movement speed has increased by 5ft

At 10th level Lightning speed increased to a 10ft bonus movement

Lightning Reflection:

At 7th Level

As a reaction you half all lightning and thunder damage for next minute and if you use this ability while taking lightning damage you can reflect the full damage onto another creature with in 30ft by making an attack roll against that creature on a hit the damage you were supposed to take is now taken by the creature on miss you take half the intended damage regardless to resistance or vulnerabilities.
Player must be able to jump into the air to be able to do this ability, if restrained or paralyses or any similar disabling effect will auto fail the attack.

can be used twice a day and uses come back after a long or short rest

Lightning Rod

 at 10th level when in a storm or if an enemy cast a lightning spell they will automatically attack you instead of the intended target if you are within 15ft of the intended target. when hit or taking damage lightning damage in this manor you can store half the damage, this damage is cumulative to max of 25 and on your next successful attack all that lightning damage is added to the attack damage.

this ability is activated at will.

Lightning conduit

At 15th level ,As a action you can make all damage you deal lighting or thunder damage and any other feature skills that use dice become d10's for duration of 1 minute

can be used twice per a long or short rest.

Lightning will Strike twice

at 18th level as bonus action to can make a full attack action.
once per a long rest