I know I am way late on the response to this, but just in case someone else reads the post looking for the same answer - one pet that does have the ability is the Lil' Deathwing from the collector's edition of Wrath. After researching the answer - this website on wowhead lists all of them: http://www.wowhead.com/petability=256
The ability is "Call Darkness"
For those that don't wanna click links the list is:
Hope this helps!