Barding of the Storm Steed
Armor (plate), very rare
This magical barding appears as mundane black plates. Over the course of 1 hour, you can place these plates on your mount. At the end of that hour, the plates fuse into your mount's skin and can't be seen. While fused in this way, the barding doesn’t impose disadvantage on Dexterity (Stealth) checks, and your mount has an AC of 18.
Additionally, while you are mounted, you can utter a command word as a bonus action to activate this armor's storm energy. Until the start of your next turn or until your mount is reduced to 0 hit points, your mount's movement speed increases by 30 feet and any melee attacks it makes deal an additional 1d8 lightning damage on a hit.
Chargeshatter
Weapon (lance), legendary (requires attunement)
Meticulously built for a knight of a time-forgotten war, Chargeshatter exists to break the line.
You gain a +3 bonus to attack and damage rolls made with this magic weapon. Chargeshatter has 6 charges, and it regains 1d4 + 2 expended charges daily at dawn. Chargeshatter has the following additional properties:
Cavalry Breaker. As an action, you can utter a command word to release a magical blast. Each creature in a 60-foot cone, which originates from Chargeshatter, must make a DC 18 Constitution saving throw. On a failure, the creature takes 6d8 force damage and is knocked prone. On a success, the creature takes half as much damage and isn't knocked prone.
Once you use this feature, you can't do so again until the next dawn or until you expend 4 charges to do so again as an action.
Thunder Lance. When you hit a creature with this weapon, you can expend 1 or more of the lance’s charges (no action required) to cast thunderwave (spell save DC 18) from it at a level equal to the charges expended.
Mage's Reins
Wondrous item, uncommon
While these reins and tack are affixed to your mount, you can use them as a spellcasting focus.
In addition, while you have these reins in one or both of your hands, you have advantage on Dexterity saving throws to resist being knocked off your mount, and when you cast a spell with a range other than self while you're mounted, the spell can originate from you or your mount.
War's Focus
Wondrous item, rare
These magical blinders sit along your mount's head, focusing its attention. While worn, your mount has advantage on initiative rolls and on saving throws against being charmed or frightened.
