Been really enjoying this game in alpha right now: https://mythgardgame.com It's not dramatically different, but does have several innovations that makes it more enjoyable than other card games. It is more complex than HS, and much closer to MTG. The lane system introduces a tactical element to the gameplay. And the "burn" system for cards means you do not have mana starve/flood situations and doubles a a mulligan mechanic. It's alpha, so low pop, but they have a Discord to coordinate games. Let me know if you want to have a game