Ultimate Odyssey released in mid-2010
Ultimate Odyssey is not a “collectible’ card game. Ultimate Odyssey is a “constructible” card game. What does that mean? That means that although you can purchase additional expansion sets, the content of those expansion sets is known ahead of time, that is, the expansion packs are not random collections of cards. If there is a card you want, you can buy only the expansion pack with that card.
Did You Know?
One of the original concept names for that game that became Killer Bunnies® and the Ultimate Odyssey was Killer Bunnies® and the New Orleans Odyssey.