For the set's full card list, check out the official MTG blog
Whenever a Ninja you control deals combat damage to a player, you reveal the top card of your library, and each opponent loses life equal to its mana value
Learn card rarities, protect your cards, and slowly build your collection
Some of the cards that are good for your deck, like Sanctum Gargoyle, Executioners Capsule, and the Spellbombs, are good in other decks, so the most likely way to end up in Affinity is to just backdoor into it after picking up a few of these and noticing quality artifacts going late
Bane Alley Broker even comes with the ability to get back the lost cards
PAX East is currently underway, and with it, we are getting absolutely bombarded with Final Fantasy spoilers