Wombo Combo Rakono

This has been a build I have been working on ever since I completed the Dead Reckoning campaign.
The main combo I wanted to build around was Sower of Dissent and Navani, Warsinger. You just have to wait until you get Warhelm because Navani, Warsinger does not stay around long. I have also seen a lot of games go where the opponent uses removal on Sower of Dissent clearing the path for Navani, Warsinger or Crimson Firemaw to stay on board a little longer.
The ideal progression of the deck is:
Turn 2: Crownwatch Paladin or Rakano Outlaw
Turn 3: Sower of Dissent
Turn 4: Valkyrie Enforcer
Or
Turn 4: Rise to the Challenge for Warhelm or Navani, Warsinger
Turn 5: get in with Navani, Warsinger and the Warhelm

Sometimes just playing Crimson Firemaw or Navani, Warsinger on turn 4 to play Deepforged Plate on turn 5 is really back breaking.
It's also nice to have Rise to the Challenge for Icaria, the Liberator just to close out some games. This deck does not do well going long I think.

Well, thanks for checking out my list. Comments are more than welcomed.