In case of Side Deck, the card must have the same backing as the respective deck they belong in (Main/Extra)
There's only one other card (a Trainer) that doesn't feature two partners on it among the most expensive cards in Unified Minds
Looking at storage solutions, I weigh them in terms of: Capacity Durability Expandability Ease of use and locating cards Look and appeal Security Total Price Lets take binders as an example
it has some very good cards at common/uncommon (Choco-Comet, Thunder Magic, Suplex, Call the Mountain Chocobo, Samurai's Katana), but more bad filler than any other color
EVENTS [Ended]Beginners Deck Party [ST-23]~[ST-28] Event has ended
The dynamic gameplay ensures there's always a new way to improve and adapt your strategy