Final Fantasy X/X-2 HD Remaster · Stat sphere
Magic Def Sphere
The guide lists a Magic Def Sphere as adding 4 Magic Defense and names One-Eye as its associated fiend.
How it works
The stat sphere table assigns Magic Def Sphere a +4 Magic Defense increase and names One-Eye, noting its high evasion. It does not provide a capture condition for this sphere in the supplied table. The guide separately says One-Eye drops equipment with Triple AP, a distinct equipment detail rather than part of this stat sphere entry.
Read the supporting references
Check the edition and source version for patch-specific details. Guide methodology.