Aecrin

Aecrin is a blade crafted from the Fang of a Blue Dragon. St. Mikael tore the fang from Lythandorous, an ancient blue dragon during the Sundering and it was formed into a Blue tinged blade that crackles with lighting as it swings through the air.

This longsword has 5 charges and regains 1d4 + 1 charges at dawn.

This Longsword has a +1 modifier to Attack and Damage rolls. Whenever this weapon deals damage with a melee weapon attack, you may expend a charge to deal 2d6 lightning damage to the target and the target must make a Con Save vs your spell save dc ( 8 + proficiency bonus + your spellcasting ability modifier). On a failure, the target cannot take reactions until the start of your next turn.

Alternatively, you may spend a charge, in place of an attack granted by the attack action, to have the lightning arc from the blade to a target within 30ft. You make a ranged attack with you spell attack bonus and deal 2d6 lightning damage on a hit.

Proficiency with a Longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Damage: Lightning, Hexblade Warlock, Versatile, Sap