Grommloc
Source: Promotion. No matter how much he screams, never give him demon blood. Humanoid type. This is most likely the placeholder for "Grommloc", the rumored upcoming Murloc pet from Blizzcon.
Grommloc 
is a BlizzCon 2014 promotional Murloc battle pet obtained by purchasing a BlizzCon 2014 Virtual Pass, delivered directly to your in-game mailbox.
Guide awaiting review
Purchase BlizzCon Virtual Pass
Grommloc was awarded to players who purchased a BlizzCon 2014 Virtual Pass. Once redeemed, the pet arrived automatically via in-game mail.
Claim From In-Game Mail
Log into any character and open your mailbox to retrieve Grommloc. Blizzard distributed these rewards starting roughly six days before BlizzCon 2014 opened.
Build Your Battle Strategy
At level 25, Grommloc has 1197 HP, 330 Attack Power, and 289 Speed, making him the highest Humanoid Attack Power pet at the time. Vicious Slice or Smash work well in the first ability tier depending on what you are fighting, while Mighty Charge is generally stronger than Clobber, and Giant's Blood outperforms Takedown in most situations.
Tips
While standing near critters, Grommloc will roar and scare them approximately every 30 seconds.
See the video guide for a closer look at Grommloc in action.
