Here's a deck I'm still testing, but wanted to create mostly for aesthetics and to get away from the dwarven swarm concept. My favorite transformer was always Devastator and I thought dwarves would be a fun way to recreate their power. If you read the text below, you'll get the basic philosophy of this deck:
"The team's combined form of Devastator is brutality in its purest form—his sole purpose is to destroy anything and everything that gets in his way. It is ironic that the suitably intelligent [dwarves] should sacrifice their thinking ability in their combined form, but simple-mindedness is a common limitation...Devastator's thoughts and actions are limited to what his six components can agree upon at any given time. Consequently, Devastator seems like a being of instinct, lashing out at everything around him before contemplating the consequences, but he is also slow and lumbering and very easy to trip up." (Wikipedia)
Devastator is composed of 6 parts, hence the six dwarves. He is also purple and green, hence the colors. I included Saruman as Megatron. There are a LOT of ways to go with this deck and probably many to make it more efficient. For example, Gandalf + Sneak Attack would help in threat. I could add more "devastation" with Goblin Cleaver and Khazad! Khazad! You can see more of my ideas in the sideboard. For now, I thought I'd put it out and let others see what works best.
Steward + Narvi's Belt goes on Bifur for Longbeard. Bifur also gives the resource smoothing you need. Well-Equipped is there for all the attachments.