Aux Core

Aux Cores are items in Xenoblade Chronicles 2 and Torna ~ The Golden Country that can be equipped to s to provide certain advantages, such as increasing , rate, and chance, depending on certain conditions, or providing damage reduction from certain s or damage. Certain Aux Cores also act as costumes, changing the user's appearance in gameplay and most cutscenes.
Aux Cores are available in two forms, an unrefined form and a refined form. Unrefined Aux Cores are unusable and must be refined, by using s at Aux Core s found in every nation of Alrest, before they can be equipped to a Blade. Which and how many collectibles are needed to refine an Aux Core depends on its effect and its rank: some only need a general "five rare collectibles" or "eight insect collectibles", while others require an exact list of specific items. Despite being refined at a "shop", there is no overhead cost beyond the necessary collectibles.
The number of Aux Cores that can be equipped to a Blade depends on the number of Aux Core slots said Blade has, with the maximum of slots being three. The amount of Aux Core slots is character-specific for Rare and Legendary Blades, and is random for Common Blades. If two Aux Cores have the same-worded effect, or both change the appearance of the user, only one of them can be equipped at a time.
==Sources==
===In Xenoblade Chronicles 2===
In Xenoblade Chronicles 2, only unrefined Aux Cores can be found or given as rewards, with the exception of appearance-changing Aux Cores. Unrefined and appearance-changing Aux Cores can be acquired in many ways:
* Dropped by enemies - Enemies are able to drop Aux Cores after Gramps first introduces them to Rex and a Critical Up II Aux Core is refined at Lily's Aux Cores. Any aux cores that would drop before this are erased, even if this wastes a first-time-guarantee.
* s - Many quests have unrefined Aux Cores as a reward.
* Merc Missions - Many Merc Missions have unrefined Aux Cores as their first time completion reward.
* Treasure troves - Many non-salvaged treasure troves contain unrefined Aux Cores.
* s - Some NPCs will give unrefined Aux Cores after talking to them or performing some actions.
* In , rank VI unrefined Aux Cores, which cannot be found anywhere else, can be found inside the treasure troves given as rewards after completing challenge battles.
* The Massive Melee Mythra Aux Core can be received from Brobro, while the rest of the appearance-changing Aux Cores can be exchanged for or Flawless Noponstone at .
===In Torna ~ The Golden Country===
In Torna ~ The Golden Country, Aux Cores no longer need to be refined and can instead be found in treasure troves, dropped by enemies, given by NPCs, or given as a reward for completing quests. Additionally, a specific Aux Core will be awarded upon completing a Blade's .
==Rank==
Aux Cores come in six ranks, with rank I being the weakest, and rank VI being the most powerful. Each rank's effect is set, meaning that there is no variation between two Aux Cores of the same type and rank. The unrefined Aux Core's rank directly translates to the refined Aux Core's, as such an unrefined II Aux Core will always be refined into an Affinity MAX Atk II Aux Core. Some Aux Cores do not come in ranks.
Mechanically, the concept of "rank" is merely a decoration. Aux Cores do not know what "rank" they are aside from whatever happens to be in their name.
==List of Aux Cores==
Name	Rarity	Price (unrefined)	Price (refined)	Effect
==In other languages==
==See also==
*Poppiswap, Poppi's equivalent to Aux Cores.
==Gallery==
===Xenoblade Chronicles 2===
====Tutorials====
Core Chip Tutorial (XC2) 1.jpg|Tutorial on Aux Cores
Core Chip Tutorial (XC2) 2.jpg|Tutorial on Aux Cores
Aux Core Tutorial (XC2) 8.jpg|Tutorial on Aux Cores
Aux Core Tutorial (XC2) 9.jpg|Tutorial on Aux Cores
Aux Core Tutorial (XC2) 1.jpg|Tutorial on refining and using Aux Cores
Aux Core Tutorial (XC2) 2.jpg|Tutorial on refining and using Aux Cores
Aux Core Tutorial (XC2) 3.jpg|Tutorial on refining and using Aux Cores
Aux Core Tutorial (XC2) 4.jpg|Tutorial on refining and using Aux Cores
Aux Core Tutorial (XC2) 5.jpg|Tutorial on refining and using Aux Cores
Aux Core Tutorial (XC2) 6.jpg|Tutorial on refining and using Aux Cores
Aux Core Tutorial (XC2) 7.jpg|Tutorial on refining and using Aux Cores
====Screenshots====
Item List Unrefined Aux Core.jpg|The list of unrefined Aux Cores in the Item List
Item List Aux Core (XC2).jpg|The list of Aux Cores in the Item List
===Torna ~ The Golden Country===
Strengthening Blade Tutorial (TTGC) 1.jpg|Aux Core tutorial
Strengthening Blade Tutorial (TTGC) 3.jpg|Aux Core tutorial
Strengthening Blade Tutorial Tip (TTGC).jpg|Tutorial tip mentioning Aux Cores as a way to strenghthen Blades
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