There are a ton of great artifacts in the set, including the Equipment cards with Job Select, and there are also a few different cards that care about artifacts like Rook Turret and Gaelicat, both of which are at common rarity
Thats an outrageous bit of value attached to one of your characters and it also protects you against the classic one-two punch of the meta defining ruby-amethyst control deck of set two, which would wipe your board with Be Prepared and then answer the first character you play with a Lady Tremaine which would force you to sacrifice it
Arthur is an incredibly powerful card that allows you to earn lore with your weak questers like Lilo, Making a Wish and Pinnochio, Star Attraction, then bounce them back to your hand to keep them safe from challenges - while also rewarding you with two lore for doing it
These are auto-include uncommon cards when you want to start upgrading the deck, and I think they should have just been included here
Some of my earliest memories are of me sitting next to my father while he was playing a game on there
Illumineers find the Inkwell Caverns at the bottom of the Illuminary, and encounter unfinished glimmers called Whispers