Oh yeah, I'd forgotten about that one. Played it for a month or so when it was in beta.
Looks like AoS:C shares some of the mechanics of Lightseekers (cards rotate and perform differently based on the facing)
Enjoying it so far, but I've only just cleared the tutorials and unlocked all the starter decks.
Also like that they give you the option to scan in and use the physical cards you own in the digital version. (not that I own any)