Final Fantasy 8 Cards

How do I get the main cards?

Ifrit: Defeat Ifrit at Fire Cavern

Tomberry King: Win it from various card players.

Biggs & Wedge: Win it from various card players.

Angelo: Win it from Watts on the train in Timber.

Quistis: Win it from Trepe Groupie #1 in Balamb Garden Cafeteria.

Zell: Win it from Ma Dincht in Balamb City (after becoming a SeeD).