Originally Posted by Fat UllarWarlord
Tell that to Crawdaunt.
EDIT: And Shiftry. and Tyrannitar. and Bisharp. and...I really feel I shouldn't go on.
It's...actually really weird that Hydreigon doesn't get Snarl.
If you check the learn lists you'll see that every other Dark type line gets it except Hydreigon's and the Cacturne line.
(Then all the canine Pokemon get it, then Mew & Arceus because duh, then....Druddigon....)
But Hydreigon is weirder because it gets Uproar, Hyper Voice, Roar, Round, Echoed Voice...pretty much all the loud sound moves.