while Legion Loyalist is great, multiples of him can make a bad hand, i Would Suggest dropping 1 or 2 out and adding...who knows maybe Vexing Shusher mainboard? or Stoke the Flames since it is great Direct Damage or removal. Some Tribal Stuff Might be useful too. i Almost forgot Goblin Rabblemaster is a MUST here, maybe getting out 2 Goblin Piledriver to the Sideboard and the Rabblemaster in... go test it ou. +1 for Goblins

Sideboard wise i would say add green to your mana base so you can put in Atarka's Command Destructive Revelry. I've been toying with the correct number of Goblin Piledrivers to Goblin Rabblemasters and my current ratio is 4-2. im starting to lean to 3-3 but we'll see where more playtesting leads. good deck though! +1. and great inclusion of boil!

also if you want to check out my Goblin Co. deck please do!

it's pretty good, My devotion green rekted it many times, if you think that it's only because I wanted myself to win or that I spent a lot of time on that deck, nope made it last night, try for self

obelisk is terrible here. Extremely underpowered compared to Shared Animosity. - 4 of that and +1 war marshal, +3 animosity. Rabblemaster is also very bad and too low impact. Consider adding Goblin Guide in its place.