Justiciar's Scimitar

Justiciar's Scimitar is a very rare +2 Scimitar weapon that can blind an opponent if the wielder strikes with Advantage. It also grants the Shadowsoaked Blow weapon action.

This light, curved blade is as unusual and unforgiving as the Darkness it strikes from.

Properties

Damage: 1d6 + 2 (3~8) + Strength or Dexterity modifier ⁠Slashing
Details:  Scimitars;  Rarity: Very rare; Enchantment: + 2;  One-Handed;  Finesse;  Light;  Dippable;  Melee: 1.5 m (5 ft);  Weight: 1.35 kg (2.7 lb);  Price: 480 gp; UID
MAG_Justiciar_Scimitar

UUID
74ecc6e4-ee5d-4cd8-96cb-dd677a4acc82

Stats
MAG_Justiciar_Scimitar

The holder of this item gains:

Shadow-Blinding: If you attack with  Advantage, you have a chance to  Blind your target.^{[See: Bugs]}

Shadow Blade: You have  Advantage on  Attack Rolls against Lightly or Heavily Obscured targets when using this blade.

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

 Backbreaker (): Put extra force behind your strike to possibly knock your enemy  Prone. ( Recharge: Short rest.)

 Flourish (): Feint an attack to possibly throw your opponent  Off Balance. ( Recharge: Short rest.)

This weapon also grants the following:

 Shadowsoaked Blow (): Strike an enemy, adding your proficiency bonus to the damage. Moreover, if the attack hits, it deals an additional 1d6⁠⁠Psychic damage. This attack doesn't break concealment. ( Recharge: Short rest.)

This weapon does not have a proficiency classification, and does not require proficiency in Scimitars to use.

Regarding Shadow-Blinding:

Despite the tooltip not stating so, Shadow-Blinding applies only to attacks made with with the weapon that has this feature.

Regarding Shadow Blade (passive feature):

While active, Shadow Blade provides  Advantage to both mainhand and off-hand equipped melee weapons.
Prior to Patch 8 Hotfix 1, Shadow Blade granted advantage to all attack rolls when active. This was changed to only melee weapon attacks.

Regarding Shadowsoaked Blow:

"Not breaking concealment" means that the attacker can remain  Hidden after performing the attack, though it still ends  Invisibility.
- A solo character can use this attack while hidden without entering combat. This lets them get two attacks off before their opponent is aware of them, making it an excellent candidate for use in assassinating isolated NPCs.

Due to the missing proficiency classification, this weapon cannot be used to activate Bladesong when equipped in the mainhand weapon slot, although equipping it does not apply Bladesong Impeded (Condition).
- This issue does not occur when equipped in the offhand weapon slot.
This weapon has a hidden version of the  Shadow Blade applied to it, which grants advantage on all melee weapon attack rolls while active, including weapon attack rolls for another equipped melee weapon while dual-wielding.

Regarding Shadow-Blinding: