Bluetracker
Tracks Blizzard employees across various accounts.
The New "Complete my Deck" functionality
Alright, this is pretty cool.
My first go, I added a couple dragons to priest, and it filled out an excellent dragon deck. I then meandered over to warrior, just hit the button with no cards, it built odd quest warrior. I did it again with warrior, and it built just odd warrior. I went over to rogue, added only Tess, and it built a great looking thief deck. I might have more fun with this tool for a while then actually playing the game. There must be some really strong stats behind it (<CARD> has great win-rate). Check it out, give it a theme, and see what it does.
Ravinix
This feature is currently disabled in the Wild format, but this was unfortunately left out of the patch notes. (We're adding it!)
There are plans to add smart deck builder support for Wild in the future, but no ETA to share yet.