Bahamut Boon: The Breath of The Dragon

You have been chosen by Bahamut the god of Justice to be one of his few Paragons. Bestowing upon you the ability to breath the lightning breath of an adult platinum dragon.

 Lightning Breath. You exhale lightning in a 90- foot line that is 5 feet wide. Each creature in that line must make a DC 19 Dexterity saving throw, taking 66 (12d10) lightning damage on a failed save, or half as much damage on a successful one.

In addition,  you gain Immunity to Lightning Damage.

Also, you gain the following spells once per day Lightning Bolt, Chain Lightning

Electrostatic Overcharge.

The boon granted to you by Bahamut overloads your body with high voltage electricity. When a creature hits you with a melee attack, grapples you or touches you an arc of 1d6 lightning damage strikes them.

A creature that is grappling you or touching you for long periods of time takes 1d6 lightning damage at the start of each of its turns.

You may redirect this uncontrolled current by spending at least 10 minutes touching a large body of metal, or the ground itself. When this Electrostatic Overload is suppressed, you can attempt to Overcharge again as an action, thereby reactivating this ability.