Your payoffs for having a hoard of artifacts come in the form of affinity for artifacts cards: one of a few legendary mechanics WotC let out of the vault for this set
You can turn on Not Collected to let you see cards not yet in your collection that you can use wildcards to add to your collection if you need it for your deck
Mayor of Avabruck I hear a lot of people complain about this card for being too big of a target, to which I reply: "well duh"
4 Emrakul, the World Anew Foil Etched - $84.42 The nice thing about Emrakul, the World Anew is that the designers behind this set managed to keep Emrakuls devastating power, while still making it feel mechanically unique
Below is the complete list of cards (249 in total), sorted by rarity
1 Roaming Throne Anyone Can Be King An instant Kindred champion as soon as it was released, Roaming Throne is an incredibly powerful artifact creature that lets you double up on some of your most important effects