Zibai in Genshin Impact is one of the characters expected to become playable in version Luna IV. Beta leaks suggest that she is a Sword user, and her signature weapon has already been leaked. It supposedly provides CRIT DMG and DEF% bonuses and buffs the DMG from a new Lunar reaction. Moreover, the leaker has also shared the materials to level it up.The article covers the stats and effects of Zibai's signature weapon and lists the materials required to upgrade it in Genshin Impact.Note: The following info is based on leaks and is subject to change.Zibai signature weapon stats and level-up materials in Genshin Impact leakedStats and effectsAccording to leaks via Hiragara, Zibai's signature weapon is a sword called Lightbearing Moonshard. It has the following stats and effects at level 90:Base ATK: 542Second stat: 88.2% CRIT DMGPassive effect: Increases DEF by 20%/25%/30%/35%/40%. For five seconds after the equipping character uses an Elemental Skill, DMG dealt by Lunar Crystallize reactions is increased by 64%/80%/96%/112%/128%.The Base ATK is pretty low for a 5-star Sword, but it's understandable since Zibai primarily scales with DEF. The Lightbearing Moonshard's second stat gives a large CRIT DMG boost, while the passive has a little DEF Bonus and a buff that increases the DMG dealt by Lunar Crystallize reaction, which is a new Lunar reaction.Hiragara is a reliable source with a good track record, so the weapon details are also likely credible.Also read: Genshin Impact Zibai animations leakedLevel-up materialsLightbearing Moonshard level-up materials (Image via HoYoverse || Genshin Impact Wiki)Listed below are all the materials needed to level up Zibai's signature weapon, as per leaks:Grain of Aerosiderite x5Piece of Aerosiderite x14Bit of Aerosiderite x14Chunk of Aerosiderite x6Broken Drive Shaft x15Reinforced Drive Shaft x23Precision Drive Shaft x27Mistshroud Manifestation x23Mistshroud Plate x 27Mistshroud Helmet x41Grain of Aerosiderite and its other types can be farmed in the Hidden Palace of Lianshan Formula domain on Wednesday, Saturday, and Sunday.Broken Drive Shaft and its other rarities can be obtained by defeating the Landcruiser enemies in Nod-Krai. Meanwhile, Mistshroud Manifestation and its other rarities can be obtained by defeating Wild Hunt enemies. You can also get both Mistshroud Manifestation and Broken Drive Shaft from the Starglitter shop, or craft higher rarities using the lower ones.Follow Sportskeeda for more Genshin Impact updates and guides.