Scimitar of the Dancing Storm [CARD] (Patreon)

Weapon (scimitar), rare (requires attunement)

This weapon has six charges. When you hit a creature with this weapon you can expend a charge to deal an extra 1d8 lightning damage. For each charge you choose to spend, the lightning chains to an additional creature within 20 feet of the last as an arc of lightning leaps from one to another. Those creatures must make a DC 16 constitution saving throw or take 1d8 lightning damage, or half as much on a success.

The scimitar regains 1d4 expended charges daily at dawn. During stormy weather you may use an action to hold this weapon aloft making a DC 16 constitution saving throw, beckoning a lightning bolt to target you. On a failure you take 2d8 lightning damage or half as much on a success, and this weapon regains all expended charges.

Like calm winds preceding a violent storm, wielders of this sword are graceful and deadly. A uniquely-shaped scimitar enchanted with yellow runestones, electricity gradually builds within the blade, able to be unleashed upon multiple foes. A proficient swordsman brandishing this weapon dances across the battlefield as a storm of shock and steel.