Hi Falah.
In case you haven't' had any luck yet, try TWISTING NETHER - Horde - Guild: World in Flames
From the EU Forum. Can't link URL as I haven't done enough posts yet, but look for
World of Warcraft -> Forums -> Gameplay -> Pet Battles > Thundering Serpent Hatchling
Most recent post from OP was 2 days ago, so guess this is still valid