Play E.T.C., God of Metal, deal 1 damage to him with Pen Flinger, copy E.T.C with x2  Bloodsworn Mercenary, and play Animated Broomstick to give them all rush. 

I don't think that's the case, it's worded "give +1/+1 to all other Totems" which implies that it doesn't buff itself. 

I can see this in Galakrond Rogue. You can use this to draw into invokes or to find your power cards like Heistbaron Togwaggle, Galakrond, the Nightmare, or Kronx Dragonhoof. This would also be another card in the deck you would be happy to draw off of Galakrond or Wondrous Wand.

Is a good target for things like EVIL Genius and Grim Rally, only thing is that would require you to be ahead on board so you have two minions to buff. Has potential but I think it will most likely be too slow.