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That said, theres a huge risk of getting nothing good

You can only run cards with identities that match your leader

Cards like Seal of Doom, Seal of Primordium, Spore Frog, and Omen of the Sea are cheap ways to get spell-like effects from permanents, and many Sultai decks benefit from these kind of cards

Leader could've been a cool way to support Lorwyn tribal decks, but I imagine it would be hard to balance

That can be done via mana rocks: artifacts like the Signets, or Mana Crypt/Mana Vault

There he learnt about Pokemons new GameBoy releases coming in February and also heard that Ishihara was developing a Pokemon card game similar to Magic the Gathering