There have been decks that use triple Aragorn before but with Messenger of the King we get access to a couple more "three of the same hero"- decks, namely Legolas, Gimli, Merry, Pippin, Boromir, Faramir, Denethor and maybe someone who I have forgotten).
Here is the triple Pippin deck. Becuase the site doesn't allow me to publsih the deck like that I had to move one Pippin to the Sideboard, and your MOTK is obviously Pippin. This deck plays a lot like a normal hobbit deck, keeping your threat low and drawing extra Cards with Lippin and getting extra attack with Tippin. Spippin can serve as a panic button if you are forced to engage an enemy, because those Pippins wan't survive any undefended attack.
Playing this deck sometimes seems like there is some inner conflict in Pippin. He engages an enemy, readies and wants to fight, but then decides, oh I'm afraid, I rather send this guy back to the staging area.
Your low starting threat gives you time to get out your army of Outland allies that give you some quest and attack power. Defense is handled by Defender of Rammas, Treebeard and Gandalf.