Inner sleeves should fit snugly, but too much pressure on card edges and corners leads to wear over time
While these new cards wont include characters or settings from the recently announced Assassins Creed Shadows, you can expect appearances from virtually every other corner of the Assassins Creed universe, including Altair, Ezio, Eivor, and more
It's great in loads of other places too, like Boros Voltron where you give your leader double strike for attacking to kill twice as fast with Commander Damage and then the power boosts from equipment or auras
Im not sure its clear which is better between Regisaur Alpha and Charging Monstrosaur, but I think they both benefit by the existence of the other, for making them harder to play around
Ghostly Dancers also creates a 3/1 Flying token spirit whenever a Room is unlocked or an Enchantment enters the battlefield, allowing you to defend with the Spirit while having your tokens apply pressure each turn
Personally I think it makes for more interesting strategy, but if the aim is to carve out a competing slice of the online CCG space, the complexity this adds may still prove to be an obstacle