Darksteel
A darkened blue metal that only forms in areas affected by thunderstorms, known for having that energy inside of it.
Weapons: Used to craft lightning damage dealing weapons, such as the javelin of lightning.
This weapon is imbued with the power of lightning and grants you swift movement and action.
When activated, you are granted +2 to attack rolls until the end of your turn, and add 1d6 lightning damage to attacks with the enchanted weapon. You are also granted the ability to use your bonus action to make an extra attack with the enchanted weapon.
The weapon stores 7 charges of this ability at a time, and requires a long rest to recover 1 charge.
Alternatively, 3 charges can be expelled to cast a small chain lightning spell that hits 3d4 targets for 3d4+1 lightning damage. Targets must be within 5 feet of each other to be chained and the lightning cannot double back. Add 2d4 damage if they are wearing armor made of metal or are primarily made of metal.
Activating any amount of charges is a free action.
If the conditions are raining or has lightning storms, this allows the wielder of Storm-Singer to cast lightning bolt at 3rd level.
A stroke of lightning forming a line 100 feet long and 5 feet wide blasts out from you in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 8d6 lightning damage on a failed save, or half as much damage on a successful one. The lightning ignites flammable objects in the area that aren’t being worn or carried.
Beezlebub's Malfeasance.
Beezlebub has meddled in the creation of this weapon by manipulating the forge master Belphit Boggs.
Item must draw blood when wielded. It can’t be put away or exchanged for another weapon until it has scored a hit and has allowed for blood to stain the blade.