Javelin of Arcane Lighning

Javelin of Lightning Very Rare

This Javelin is a +2 Magic Weapon. When you target a creature, after a hit or a miss, you may speak a command word and the javelin will transform into a bolt of lightning and return to your hand. If you have multi-attack, you may use it as many times as you have attacks on a turn.
Additionally, when you speak a different command word, it transforms into a bolt of lightning, forming a line 5 feet wide that extends out from you to a target within 120 feet. Each creature in the line excluding you and the target must make a DC 13 Dexterity saving throw, taking 4d6 lightning damage on a failed save, and half as much damage on a successful one. Make a ranged weapon attack against the target. On a hit, the target takes damage from the javelin plus 4d6 lightning damage. This feature can be used once per day, recharging every day at dawn.

Melee Weapon (Simple, Javelin)
Damage: 1d6
Damage Type: Piercing
Properties: Range, Thrown
Range: 30/120
Weight: 2