Full Moonstone Of The Covenant Location And Quest Details

Posted on 3 November 2026 | 55
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Upgrading special boss weapons in Lies of P requires extremely rare crafting materials that can be difficult to locate during a standard playthrough. Among these resources, the Full Moonstone of the Covenant stands out as the essential item needed to push your special weaponry to its maximum potential. Knowing where to look and how quest progression affects your inventory ensures you do not waste these valuable upgrade items.

Understanding Full Moonstone of the Covenant Uses

Special weapons acquired from bosses require specific materials for each tier of improvement. While initial upgrades rely on Dark Moonstones of the Covenant, final upgrades demand the ultimate Full Moonstone variant. Players must carefully select which boss weapons to prioritize because the quantity available in a single playthrough is severely limited.

Bringing these rare materials to Eugenie at Hotel Krat unlocks the highest damage caps and stat scalings for your chosen weapon. Because these upgrades cannot be refunded, plan your build around your preferred playstyle before committing your resources.

Primary Locations in Arche Abbey and Relic Zones

Most Full Moonstones of the Covenant are discovered late in the game, particularly around the sprawling Arche Abbey and Relic of Trismegistus regions. Defeating specific Dimensional Butterflies in these zones often yields one of these coveted upgrade materials. Exploration off the main path frequently reveals hidden ledges and platforms holding these drops.

For instance, players can spot a butterfly carrying this material near the Stargazer at the Relic of Trismegistus Entrance. Additional items rest inside chests or on high metallic walkways within the upper tiers of Arche Abbey. Searching every corner before facing end-game bosses guarantees you will not overlook these vital pickups.

Vendor Unlocks and Quest Details

Besides field pickups, players can expand Polendina's shop inventory at Hotel Krat by delivering specific Krat Supply Boxes found across Krat. Handing over all three supply boxes allows Polendina to sell a limited quantity of rare upgrade stones, including a Full Moonstone of the Covenant. Completing side objectives and checking Trinity Sanctum safes in New Game Plus runs offers further opportunities to collect them.

Managing your inventory wisely throughout your journey makes late-game encounters much more manageable. Prioritize collecting supply boxes and pursuing option objectives to ensure your favorite special weapon reaches max power.