See my Patch 4.2 Rare Pet Briefing Post for an updated guide on how to tame Deth’tilac, as well as the other 9 Patch 4.2 Taming Challenge pets.
And now for the pièce de résistance… Deth’tilac. Deth’tilac is regarded as the most difficult to tame in the series of rare beast taming challenges that Blizzard has incorporated in Patch 4.2.
From what I can tell, Deth’tilac looks like he could pose an interesting challenge.