Is it worth getting back into the game?

I wanna play this game again but start from scratch cause im feeling nostalgic, i was like a lvl 70 death wizard before with deerknight, are cards like deerknight still required to progress threw the game and if so are they any easier to get then they were like 4 years ago? Im thinking of doing a storm wizard this time but im not sure, any reccomendations? But yea is the game worth gettinf back into and is there like a discord community cause i want people to play with