Regina Stone Drops and Crafting Guide
Regina Stone is a craft material used to upgrade weapons into the Regina line, which sits above regular silver-tier gear but below the very endgame god-ranked weapons. If you are working toward a full Regina weapon set, you need to know where the drops come from and which enemies give you the best return for your time. The stone drops from Balam Rank Missions, specifically the ones that require Balam Rank 3 or higher clearance. The main sources are the high-level oracle engines and larger Aragami encounters you unlock as you progress through the story missions. I usually farm the Balam Rank missions that feature the larger enemies like Enchanters and Berserkers because those runs tend to have better drop rates per hour compared to hunting smaller swarm-type Aragami. There is also a small chance to find Regina Stone in the shop occasionally, but relying on that is not practical. It shows up rarely and you never know when it will appear again.
The drop rate itself is not generous. I tracked my own runs over a couple weekends and found that a typical Regina mission with a decent drop might yield one Regina Stone every three to five clearances. That means if you need a handful for crafting, expect to put in a few hours of mission farming rather than grinding a single mission repeatedly. Speed-clearing with good loadouts actually matters more than staying in one hard mission, because running faster gives you more attempts per clock hour. One thing I ran into that almost made me quit the grind entirely was discovering that I had been running the wrong Balam Rank missions. The Regina Stone does not drop from lower-rank story missions even if they have large Aragami. You need to be clearing missions that explicitly list Balam Rank 3 requirements or higher. Once I switched to the right mission pool, the drops started showing up consistently enough to keep going. Double check the mission description before starting a run rather than assuming any big enemy battle will give you the material.
What Regina Stone Is Used For
Regina Stone goes into crafting Regina weapons at the Armory. These weapons provide a solid damage boost over standard equipment and unlock additional skill slots that let you build more specialized Aragotti builds. You typically use the stone when upgrading from silver weapons into the Regina tier, and then again for further enhancement branches depending on the weapon type. The crafting cost varies by weapon. Some Regina weapons need only a single Regina Stone plus other common materials, while others require two or three stones along with rare craft components from specific Aragami parts. Check the crafting screen before committing to a weapon path because spending stones on a weapon you end up replacing later wastes resources.
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Best Missions to Farm Regina Stone
The most efficient missions to run are the Balam Rank 3+ story missions featuring Enchanters or high-level Oracle Engines. These enemies have larger hitboxes, which lets you finish encounters faster while still maintaining a reasonable drop check chance. I usually run the desert and tundra missions because they spawn larger Aragami consistently and the clear times average around ten to fifteen minutes per run. If you are in a group, party missions can be faster overall but sometimes drop less per person because the game splits loot responsibility across participants. Solo runs tend to be more predictable for material farming even though they take slightly longer per attempt.
Pitfalls to Avoid
Do not trade Regina Stone at the shop unless you have extra you do not need. It has very limited sell value and you will need every stone for weapon upgrades if you plan to reach the mid to late game weapon tiers. Also avoid trying to craft Regina weapons too early in a playthrough. The damage scaling makes them look tempting, but upgrading past Regina into the god-ranked weapons consumes different materials entirely, and building a Regina weapon you immediately replace is a common waste of resources. The stone has no other major uses outside of weapon crafting, so there is no alternate route to convert it into something else. If you are unsure whether you need it for a specific weapon, look up the craft tree before farming just in case the weapon you want does not actually require Regina Stone at all.
