There are a few cards in the game which are one of a kind - thus deeming them rare. Below is a list of how to obtain them.
Pupu
Pupu Card - Must Complete the UFO Chase and give the Alien 5 Elixirs, if
the Alien dies, the Card is lost
Chubby Chocobo
Chubby Chocobo - Must take part in the Queen of Cards Quest. A Male student
sitting on a bench outside the library has this Card.
Angelo
Must win from Watts (Forest Owls), in Disc One, or the White SeeD
Ship on Disc 3.
Gilgamesh
Complete the CC Group Quest, beat all of the Members, and
then King to receive this Card.
Mini Mog
Win from the jogging lower classman in the main hall
Chicobo
Visit each Chocobo Forest and solve the puzzles. Then head to the
Chocobo Sanctuary to receive the Card
Quezacotl
Win from Mayor Dobe
Shiva
Win from Zone of the Forest Owls in Disc Three. Must have the "Girl
Next Door" Magazine from the Timber Maniac's Office in your items. Give up
the magazine for free to receive the Card
Ifrit
Beat Ifrit
Siren
challenge the pub manager on the
second floor. Defeat him, and you'll go to a back room to challenge him
again. Win the Siren Card normally.
Sacred and Minotaur
Defeat Brothers.
Carbuncle
Must partake in the CC Group Quest. Win from The CC Member
Heart.
Diablos
Beat Diablos
Leviathan
Challenge the CC Member Joker and win.
Odin
Defeat Odin in Centra Ruins.
Pandemona
Defeat Balamb Hotel Owner
Cerebus
Defeat Cerebus.
Alexander
Challenge Piet at Lunar Base
Phoenix
An additional part of the Queen of Cards Quest. The Presidential
Aide inside the Palace has the Card. The aide is in the first room of the
initial visit.
Bahamut
Challenge Bahamut
Doomtrain
Additional part of the Queen of Cards Quest. The Pub owner has
it in his deck.
Eden
Defeat Ultimate Weapon
Ward
Defeat Dr. Odine in cards.
Kiros
A man in black across
from the shops across from Deling City has the Card.
Laguna
Beat Ellone at Lunar Base
Selphie
Selphie's Friend in Trabia.
Quistis
Defeat one of the Quistis fans.
Irvine
Defeat flo in FH.
Zell
Defeat Zell's mom in Balamb.
Rinoa
General Caraway has the card, but never uses it. Intentionally lose
the Ifrit Card, and he'll use the Rinoa Card on a regular basis in
order to get the Ifrit Card back, you must defeat Martine at the Galbadia
Garden.
