Pantera is an enemy in Final Fantasy V fought only once in the Island Shrine in a monster in a chest. Opening the chest will either spawn it or Covert. It appears as three enemies. It is not listed in the in-game bestiary.
Panther is a mythological creature that resembles a big cat with a multicoloured hide. Under medieval belief, after feasting, the panther will sleep in a cave for three days, then roars emitting a sweet odor that draws in any creatures who smell it (the dragon being the only creature immune). They are eaten by the panther, and the cycle begins again.