Thunderbolt

an art gleamed from the arts of the ancient dragon knights, servants of the 4 ancient dragons before their disappearance thousands of years ago. allows the wielder to summon lightning from the very heavens to strike their foes just like the ancient dragons did during the great age of chaos when bloodshed and visceral bloodlust swept the land. The age of the primordial crucible was terrifying, yet so glorious... now smothered in the shackles of gold to be temporarily tamed until one day it may resurface.

raise either your melee weapon, staff, or arm into the air, causing a bolt of lightning to blast down from the sky and strike a single target that you can see. this deals 1d10 lightning damage and additionally deals 1d4 thunder damage to any enemies within 5 feet of your target.

(Notes: can be used anywhere, even underground, in the underdark, or underwater. it is magical lightning after all.)

at higher levels:

at level 5, 11, and 17 the damage increases by 1d10. to 2d10-3d10-4d10 respectively.