Phantasy Star Online III CARD Revolution by Sega

Roll the dice to determine action points, then take your turn using any combination of the five cards in your hand to use weapons and summon creatures to attack in an effort to wear down your opponent. New cards are dealt after each turn.

PSO Worlds collide via a "visual lobby" that provides a venue for players for all PSO games to gather, share information and edit decks. Then, the story characters move on to the planet surface and engage in a strategic battle of wits.
* Play on or offline and choose to play the "Light" or "Dark" decks.

* Hundreds of cards allow for an impressive collection of weapons, creatures and spells.

* Turn-based combat system with decks of cards.

* Win additional cards in battles and trade with fellow players.

* Fully playable offline and via the GameCube's Modems or Broadband Adapter.