My favourite card definitely is Mogu Cultist. I really like the crazy meme potential of cards like this and can't wait to test the things possible with this one.

Hey there!
I just discovered this site and am really impressed by just how well designed and optimised it is. Also, for the new expansion itself I have to say it looks really promising, can't wait to play with the new Dr. 7 or maybe even the new druid and rogue.