u/Plausibleaurus

There's a number of cards that are rares/mythic in the mystical archive that are already available in arena at a lower rarity (and therefore craftable with an uncommon/common WC). You should craft these before opening your packs so you get the duplicate protection in case you open a mythic/rare SOA card.

The cards are: Reprieve, Preordain, Dismember, Sheoldred Edict, Big score, Empty the warrens, Crop rotation, Veil of summer, Expressive iteration, Fracture + Daze and Brain freeze (we should get these last two from the powered cube but we had bugs before with these where those weren't available immediately). You should craft all of these at x4 with at least 1 copy as mystical archive version.