Two mana is fine and as you say, the options it provides are good compensation
Then go to the Decks screen
However, Pendrell Drake and Keeneye Aven are actually excellent cards to stop Hypnotic Specter, Mishras Factory, or Faerie Conclave
Legendary Artifact Assault Suit Equipped creature gets +2/+2, has haste, can't attack you or planeswalkers you control, and can't be sacrificed
Finally, since some of your key cards interact with tokens, doubling your token production with Doubling Season can be a great addition to the strategy
Both of those are pretty strong from where I am sitting, since the first is a win-con and mass card advantage and the second is a strong Zombify effect