[Divine] Artifact - Shattered Horizons

This spear is a fragment of Vordin the Shackled Seer, granted to a worthy champion of the God of Storms and Destiny. The spear crackles with blue-white lightning, capable of piercing the confines of fate to forge new destinies. Vordin bestows such a spear in times of great need: to those who yearn for freedom or to those who display an unbreakable will — and perhaps one day free the god from his prison.

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Shattered Horizons
Weapon (spear), artifact (requires attunement)

To attune to this spear, you must spend the duration of the attunement period at the highest location within a 10-mile radius pointing the spear to the sky, after which storm clouds appear and roil above you. At the end of the duration, lightning strikes the spear, forcing you to make a DC 15 Constitution saving throw. On a success, you attune to the spear. On a failure, you do not attune and take 6d6 lightning damage.

Envoy. The spear grants the following benefits while you are Vordin's Envoy:

• The spear grants a +1 bonus to attack and damage rolls made with it. Immediately after you throw or make a ranged attack with this spear, you can cause it to teleport back to your hand. 
• If you miss your target’s AC by 1 with an attack using this spear, you can use your reaction to deal 2d6 lightning damage to it. 
• When you fail an attack roll with this spear or an ability check while holding it, you can re-roll the die and must use the new result. This property can't be used again until the next dawn.

Herald. The spear grants the following additional benefits while you are Vordin's Herald:  

• The spear's bonus to attack and damage rolls increases to +2. 
• Immediately before teleporting the spear back to your hand, you can use a bonus action to teleport to an unoccupied space closest to the target of your throw or attack. This property can't be used again until the next dawn. 
• While you hold this spear, you have resistance to lightning damage.

Champion. The spear grants the following additional benefits while you are Vordin's champion:  

• The spear's bonus to attack and damage rolls increases to +3. 
• The damage you deal when you miss a target’s AC by 1 increases to 3d6. 
• As an action, you can throw this spear and transform it into a long bolt of lightning that hits a point you can see within 300 feet of you. Each creature within 5 feet of that line must make a DC 17 Dexterity saving throw. On a failed save, a creature takes 4d6 lightning damage and if it is Medium or smaller, is pushed 10 feet away from the line. On a success, a creature takes half as much damage and is not pushed. Medium or smaller objects also take this damage and is pushed 10 feet from the line. This property can't be used again until the next dawn.

Destroying the Spear. To destroy Shattered Horizons, it must be brought to the Timeless Infinity, a demiplane outside of time where futures and pasts can be viewed. When submerged into the Finite Continuum, the spear splits into three spectral forms, each of which must be fed to a possibility leech, a temporal malefice, and a chronal paradict. With all its destiny absorbed, the spear crumbles into golden dust.

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DESIGN COMMENTARY

Vordin was mentioned first in Animal Accoutrements, as part of the Vordin's Herald set for your beast companions. He started out as a basic storm god, but I added the destiny flavor later on. I later learn that's exactly also what the storm god from Theros is all about. That was a strange moment.

The destroy condition is fun, too, and includes a fun trek to the Timeless Infinity, a place where destines can be read.

This object functions much like a Javelin of Lightning but with added benefits. Aside from the obligatory "appears back in hand," you can also teleport along with the spear (like lightning). The final champion feature improves this to an incredible degree. Whoohoo!