If this is what you have, the copyright date can help you narrow down the search
If you can benefit from that situation with a Fecundity or something, go for it, but this seems like its hard to benefit from and 8 mana spells better win the game almost on their own
If you happen to be building a strict theme deck, you will probably want to dip into almost all of these cards, as well as Might of Oaks (the Urza's Legacy, version), Monstrous Growth (the Portal Second Age, version), and the amazing Squirrel cards before Odyssey
It's unclear if Hydrapple ex can actually make a major impact in the metagame, but this deck looks to be a ton of fun when it goes off
Shes not going to be the most popular among your opponents with the constant shuffling and repetitive/combo-enabling gameplay that tutoring allows, but thats what makes her one of the best mtg commanders