• Graveyard Focus: Odyssey really shook up the game by making the graveyard a central resource. Before, it was mostly a place for dead cards. This set encouraged players to think about how to utilize their graveyard for advantage, whether by bringing creatures back to life, playing spells from the graveyard, or exiling cards for effects.
• New World and Story: Odyssey introduced a fresh setting and cast of characters, moving away from familiar planes like Dominaria. This created a sense of discovery and allowed for new mechanics and themes to emerge.
• Color Identity: While all colors interacted with the graveyard in some way, you correctly pointed out that black and green were the kings of the graveyard in Odyssey. Black excelled at reanimating creatures and draining opponents based on graveyard size, while green focused on retrieving creatures and lands from the graveyard.

Some iconic cards from Odyssey that exemplify its themes include:

• Flashback: This mechanic allowed players to cast spells from their graveyard, giving them extra value. Cards like Call of the Herd and Chainer's Edict were staples.
• Threshold: This mechanic granted creatures and spells powerful bonuses if you had seven or more cards in your graveyard. Cards like Werebear and Mystic Enforcer became much stronger as the game progressed.
• Madness: This mechanic allowed you to discard cards to pay an alternative cost, often making spells cheaper. Cards like Wild Mongrel and Circular Logic were key to Madness decks.

Odyssey is fondly remembered for its innovative mechanics and its impact on how Magic is played. It's considered a classic set that pushed the boundaries of the game