This is an aggro deck I put together trying to out race Wolf Run and Delver of Secrets. It works pretty well and can be a little more fun than the typical aggro decks. Every creature is a threat, and every other card makes your threats better. The basic idea is to get a Boneyard Wurm or Splinterfright on board as early as possible so you can just pitch everything else. I will go through a short analysis for some of the card choices.
Ghoultree is one of the cards I wasn't 100% on. Every other creature provides either provides continuous advantage or must be dealt with. He is a huge dude that can be dropped cheaply, and he plays into the decks strategy.
Molten-Tail Masticore is awesome. Some people have argued he is bad because of all the artifact removal, but I think the regenerate ability makes him more than sturdy enough and he plays perfectly into your grave yard strategy. Against control he pretty much wins mid-game, so he's great there.
Fling is all flavor. I know the card isn't the best, but I love it. Nothing makes me LOL more than dropping a mid to late game Boneyard Wurm, Ghoultree, or Splinterfright when they are below 10 life and Flinging it for win. It can easily come out for a fourth Mulch which makes it more consistent.
I would really appritiate comments. I'm still trying to make it work, but for some reason with only 22 lands I keep getting flooded and can't figure out why.
I will finish the sideboard later, sorry, just can't remember all of the cards.