Silver Sword of the Astral Plane

Silver Sword of the Astral Plane is a legendary greatsword that grants its wielder the Soulbreaker weapon action and provides special bonuses when wielded by a githyanki.

The fervour with which the githyanki express devotion to their queen is admirable to some, disquieting to others. When confronted with the fallibility of the divine (since no one is wholly perfect), who knows what reactions such folk might evince.

Properties

Damage: 2d6 + 3 (5~15) + Strength modifier Slashing damage
Details: Greatswords; Rarity: Legendary; Enchantment: + 3; Two-Handed; Dippable; Melee: 1.5 m / 5  ft; Weight: 2.7 kg / 5.4 lb; Price: 1300 gp; UID
MAG_GreaterSilver_Greatsword

UUID
f01c3f5d-c542-420f-86c5-bdddf7819e29

Special

The holder of this item gains:

Githborn Psionic Weapon: When wielded by a githyanki this weapon deals an additional 1d6Psychic damage.
Githborn Psionic Resistance: A githyanki holding this weapon has Advantage on Intelligence, Wisdom, and Charisma saving throws, resistance to Psychic damage, and cannot be Charmed.

Weapon actions

If you have proficiency, equip in main hand to gain:

Pommel Strike (): Make a non-lethal attack against an enemy and possibly Daze them.,
Lacerate (): Slash at your target's vital points to make it Bleed., and
Cleave (): Swing your weapon in a large arc to attack up to 3 enemies at once. They each take half the damage your weapon usually deals.

Special weapon actions

This weapon also grants the following:

Soulbreaker (): Rend the enemy's body and soul, dealing additional Psychic damage equal to your proficiency bonus, and possibly Stun them.

Rewarded for showing the Orphic Hammer to (or killing) Kith'rak Voss in Act Three.
This sword can alternatively be obtained in Act One by disarming Voss via Command (Drop), Heat Metal, Disarming Attack (Ranged), or Honeyed Paws before entering the Mountain Pass X: -139 Y: 561.
- If received in Act 1, a second version of this weapon will not be given as a quest reward but can be looted if Voss is killed in Act 3.
- Voss must be disarmed before beginning the encounter, as he immediately flies away when any hostile action is taken and the party is locked into dialogue when approaching close enough.
- Due to his high stats, the chance of failing the disarm attempt against him is very high, so this method may require multiple reloads or extensive preparation. See: Guide: Early Silver Sword.
- Using Honeyed Paws while having a divination wizard with a 15 or higher portent die nearby allows you to guarantee that he drops his weapon. You can long rest until you get 15 or higher and make the bear invisible^{[note 1]} so he can approach Voss.
- Sometimes Voss will only drop a Githyanki Crossbow, or the weapon he drops will simply phase out of existence. The triggers for these anomalies are not known.
The sword can be acquired in Act Three before entering the Lower City during Deal with the Devil. If you don't sign the contract but lie to Voss, he will give you the sword ( DC 30 Deception check).

The githyanki-exclusive bonuses can also be enabled by being disguised as one. However, you must be disguised before equipping the weapon for this to work.