What negative effects can Esuna cure?

Solution 1:

Based on the White Magicks page, the Esuna(ga) does not remove the following negative statuses.

(emphasis my own)

Esuna: Effect: Removes negative statuses from one target. Does not remove Oil, Critical HP, X-Zone, KO, Stone, Stop, Doom, Disease, or Slow.

Esunaga: Effect: Removes negative statuses from all targets in range. Does not remove Oil, Critical HP, X-Zone, KO, Stone, Stop, Doom, Disease, or Slow.

I cannot recall if this functioned the same before, but seeing there are no categories labeled as FFXII/Zodiac, it would appear these white magicks also functioned the same in the original version