Some of the cards are individually craftable, but Arena Anthologies collect them all into convenient bundles
up to 1 of your opponent's rested Characters
These are the first details we've seen of the dungeon crawling mechanic, but we've glimpsed several more Adventures in the Forgotten Realms spoilers before
Magic Broom typically costs two ink, but Mickey Mouse, Wayward Sorcerer brings that down to just a single ink - making the brooms two strength and two willpower, plus the power to quest for a lore, even greater value
Legends like Terra, Magical Adept, Clive, Ifrits Dominant, etc
Gemstone Volume 4 features varied collectible treatments, including attribute-pattern foil, Master Ball-pattern foil, Gem Pack logo gold-stamped foil, and illustration-art foil cards