Grommloc was a gift for US and EU BlizzCon 2014 attendees and purchasers of the Virtual Ticket. The gift card received by attendees may be scratched to reveal a code allowing all current and newly created characters on the account access to this pet. Virtual Ticket holders are mailed the pet directly in-game.
1. You will get Grommloc.
2. ETA: 2-24 hrs.