Final Fantasy XVI Guide | How To Use The Adder Stone

Here's everything you need to know on how to use the Adder Stone efficiently in Final Fantasy XVI.

Game Guide by Ornstein on Jan 22, 2025

The Adder Stone has been known to be one of the rarest items within Final Fantasy XVI and boasts great benefits that will significantly boost your play. This makes it one of the most desirable objects within this domain because of its mysterious origin and its possibilities. In order to use its power most efficiently, one needs to understand how to get, use, and strategize with the Adder Stone.

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What is the Adder's Stone?

The Adder Stone is an ancient magical object related to the now-degenerating power of Valisthea's Mothercrystals. Neither a regular craft material nor a consumable thing, this is but a key to unlock special enhancements, powers of an unusual type, and rewards hidden from public view.

According to the legend of this item, it was built by the Ancients, who helped in battling the Blight and, therefore, were part of history; thus, it was useful in this respect. Although, in general, nothing has been said about its specific role, working with it exposed its capability for changing your approach to fight and exploration.

How to Get the Adder Stone

It is quite an achievement to get an Adder Stone, as it is so rare that only the most persistent players can do this. An Adder Stone can be obtained by completing special high-level side quests, defeating some elite enemies, or finding hidden treasures in the secret locations of Valisthea.

One notable location to search is deep within dungeons guarded by Eikonic enemies, and triumphing over such difficult trials can feature an Adder Stone as part of your reward. This could also be offered by specific merchants who want rare items or resources in return. This can also be done through normal exploration, combined with the completion of optional tasks, which will increase your likelihood of getting one.

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Enhancing Abilities with the Adder Stone

The most obvious use for the Adder Stone is to upgrade Clive's abilities and Eikonic skills. Giving it to a person like Blackthorne the blacksmith or Harpocrates the loremaster, upgrades to abilities will be made available. More often than not, upgrades consist of things like increasing damage or decreasing cooldowns but can even go as far as adding special visual effects to your abilities.

Applying an Adder Stone to an Eikonic ability like Garuda's Deadly Embrace could increase its range or allow for new combos. It is important to experiment with what skills to enhance because the Adder Stone is a resource you do not want to use too freely.

Unlocking Exclusive Gear and Items

Other than its use for skill bonuses, the Adder Stone is used to craft or unlock rare equipment and arms. Some of the recipes in the game require an Adder Stone as an integral ingredient and give equipment with statistics that no other equipment has or even perks that no other equipment has.

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For instance, embedding an Adder Stone onto a legendary sword would grant Clive more attack speed or elemental damage in addition to his present statistics. In like manner, an armor set inflicted with an Adder Stone may give more survivability to its wearer because of resistance either to status effects or elemental damage. Regular visits to blacksmiths and merchants ensure that no crafting opportunity involving an Adder Stone is missed.

Strategic Hints to Make Full Use of the Adder Stone

Given that the Adder Stone is so rare, you really need to have a well-thought-out plan for using it to its fullest potential. You have to decide upon your preferred game style and whether to use more physical combat. Hence, you may want to use it to upgrade your weapons or your melee abilities, or if your style is based on Eikonic powers, then you will probably develop your Eikon.

You should save the Adder Stone until much later in the game when there are different items and various upgrades available. When possible, make sure you get even more Adder Stones via post-game DLC or New Game+ since its usefulness could very well last that long.

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Finally…

The Adder Stone truly revolutionizes everything in Final Fantasy XVI, promising new height classifications and improvements in personalization during battles. You truly unleash its potential by learning its origin, collecting it through missions and explorations, and knowing just how to use it wisely.

Whether amplifying Clive's powers, fashioning legendary armor, or revealing secret content, Adder Stone is a satisfying act that seals and progresses your quest with Valisthea. Used right, and it is one of your biggest guns in the fight against the Blight.

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