Greatsword embedded with a blue glintstone. The favored weapon of the steadfast Carian knight, Moonrithyll. Moonrithyll was the Twin Moon Knight's chamberlain. She was also a friend to the trolls, who served the royal family, and proudly wielded their weapons as she fought arm in arm with her gargantuan comrades.

The weapon drops from defeating the hostile NPC Moonrithyll, Carian Knight. Tremendous Phalanx. This weapon cannot be infused with Ashes of War. Can't be buffed with Magic or Consumables Moonrithyll's Knight Sword can be upgraded by using Somber Smithing Stones. This weapon shares an identical appearance with the Troll Knight's Sword, in addition to possessing the same attack rating, guard rating, scaling, stat requirements, damage type, and weight with only its slightly smaller FP cost and unique Ash of War setting it apart.