Creating the best armor in Final Fantasy X is a process that involves gathering raw materials and customizing an empty four-slot armor. You can purchase empty armor from O’aka XXIII’s brother, Wantz, in the Macalania Woods, but only if you spoke to him on your way past him along the Mt. Gagazet Mountain Trail. The four slot armor items include:

• Tetra Shield
• Tetra Ring
• Tetra Armguard
• Tetra Bangle
• Tetra Armlet
• Tetra Bracer
• Tetra Targe

Check out the O’aka XXIII side quest page for details on Wantz and the shops you can access:

Alternatively, if Wantz has not appeared, you can travel to the Omega Ruins and battle enemies there. They each have a chance of dropping an empty piece of four-slot armor, although this is a much more time-consuming method.

Auto-Abilities to Customize

So which auto-abilities should you add to your armor? There is some debate amongst gamers as to which auto-abilities are the best and whether some seemingly strong auto-abilities are even necessary. The guide will break down the auto-abilities into four classifications:

Must Have Auto-Abilities
These auto-abilities are commonly considered the strongest, and you should add them to nearly all armor pieces. There are a few situations where you won’t want to equip them, and there are a few end-game superbosses that you can defeat without these “must-have” auto-abilities, but generally speaking, these are considered to be the best.

Strong Auto-Abilities
““Must have” auto-abilities will generally take up three slots on an empty four-slot armor, leaving you with room to add some “strong” auto-abilities that may be suited to your play style. These auto-abilities may also be particularly effective in certain boss fights.

Other Auto-Abilities
These are special auto-abilities that you will want to have on some armor pieces that you will keep in your inventory.

Unnecessary Auto-Abilities
These auto-abilities may seem useful to a casual gamer, but they are not necessary, and you can avoid adding them altogether.

Don’t be afraid to create multiple sets of armor with the various auto-abilities that you need. Creating this armor can be expensive and time-consuming to farm, but there are no limitations to the number of variations of armor that you can have.

Table of Auto-Abilities

So which auto-abilities are the strongest? A short list is included below, while more details are provided below the chart detailing how to obtain each auto-ability.

Importance	Auto-Ability
Must Have	Auto-Haste Auto-Phoenix
Strong	Auto-Protect Auto-Regen Auto-Potion Ribbon Stoneproof Defense +20%
Other	No Encounters Gillionaire Master Thief
Unnecessary	Break HP Limit Break MP Limit

Auto-Ability Descriptions and Details

Auto-Ability	Description
Auto-Haste	This is the quintessential Auto-Armor ability. This auto-ability will increase the number of moves that your character can initiate in battle, increasing the damage they do and their ability to react situationally during battle. It also counters Slow automatically if an enemy casts it on your characters or if a boss’s move would usually put you under the effect of Slow. Raw materials required: Chocobo Wing x80
Auto-Phoenix	Auto-Phoenix is a great way to set up your characters so that they can never be KO’d (unless all three of them are KO’d at the same time). Auto-Phoenix will allow your characters to use a Phoenix Down automatically if one of their team members is KO’d during the battle. Raw materials required: Mega Phoenix x20
Auto-Protect	This auto-ability will cast the Protect spell automatically on the player and will significantly reduce the amount of damage done by physical attacks to the party member. This ability is considered to be one of the stronger ones because many boss battles require you to protect your characters to survive powerful attacks. Raw materials required: Light Curtain x70
Auto-Regen	This auto-ability will automatically cast Regen on your party members, allowing them to slowly regain health as the battle progresses. Each turn, they will regain some HP. This auto-ability is strong in that it helps you keep your characters alive passively and farm more efficiently. It is not enough to protect yourself from the damage done by more powerful enemies, though, and supplemental healing will be required. Raw materials required: Healing Spring x80
Auto-Potion	This auto-ability does more than just use a Potion when you take damage. This auto-ability will also cause your team members to use a restorative item if an enemy hits them with a negative status effect, such as Antidotes, Echo Screens, and Remedies. If you make sure that you only have X-Potions and not other, lower-level potions in your inventory, you can use the auto-ability to have your characters use an X-Potion on themselves to recover any damage taken during a fight immediately. Raw materials required: Stamina Tablet x4
Ribbon	This auto-ability prevents the character from being impacted by negative status effects. Having this auto-ability (or similar auto-abilities) is required to obtain a strategic advantage for some boss battles. It can replace the Stoneproof auto-ability. Raw materials required: Dark Matter x99
Stoneproof	This auto-ability is not as strong as Ribbon, but it is also not as difficult to obtain the raw materials required to add it. Having this auto-ability is required to survive a number of the superboss and end-game battles. Raw materials required: Petrify Grenade x20
Defense +20%	This auto-ability is not as strong, but it is required for a few of the high-level boss battles. It reduces the amount of damage caused by physical attacks. Raw materials required: Blessed Gem x4
Break HP Limit Break MP Limit	These two auto-abilities may look powerful, and many players do end up adding them, but they are not required, and there are better auto-abilities that you can add. Very rarely does having HP over 9,999 make a difference during a fight, and having extra MP is not required.