There are three decks total, featuring Sapphire/Steel, Ruby/Emerald, and Amber/Amethyst ink combinations, and each deck comes with two foil face cards one rare and the other super rare
You really just want to make it to the later game, where your Evasive and higher-lore characters become overwhelming
the Golgari mechanic Undergrowth, which the designers couldn't find a place for, as no other MTG color combinations wanted it
If it's a character card, they may put it into their hand
Jump-start (You may cast this card from your graveyard by discarding a card in addition to paying its other costs
If a Surge Engine whose last ability has been activated leaves the battlefield and comes back, it's a new object on the battlefield and its last ability can be activated again (once it's blue, of course)