here's 2 decks i made, the r/w is competitive and does pretty well, and the mono red i haven't actually used in competitive. Hope they help. Goblin Master Race Goblin Master Race V 2.0

I'd swap out a Goblin King for a Goblin Chieftain . It would also be wise to reduce your 1 mana dudes and get a bit more fatness in there for the midgame.

I have a goblin deck (but some of it's legacy) if you want to look.

Goblin Rabblemaster

Love the deck! Feel free to checkout mine as well for some ideas Competitive Goblins. Feedback is welcome

Let me know how Goblin Rabblemaster fairs. I cannot bring myself to purchase him at the price he's at right now and I also REALLY dislike being forced to swing with everything if I am building up a board state to swing fatal with a kicked Bushwhacker or risk losing my Goblin Chieftain and his +1/+1 bonuses.

Interesting; I had been thinking about splashing black when I started building this deck, but couldn't get it to pace right. Maybe I'll try out some of your ideas! Meanwhile, your concerns about the Rabblemaster are totally valid, but I've found that this deck at least almost always attacks anyway, and that when the Rabblemaster comes out with a Chieftain and a Foundry Street Denizen, the game ends FAST, especially if you have Quest for the Goblin Lord up. I think I'm going to keep him, but only at two-of. At that distribution, he comes up often enough to be useful, but doesn't put me into "forced attack" locks too often. I didn't realize how expensive they had become--I had originally picked up both in the same pack (one foil, one not), then traded one away for a Chieftain haphazardly, then two weeks later traded the same guy whatever my FNM prize was to get it back because we were both under the impression it was still a $1.50 rare. Whoops, looks like I ended up on the better side of that deal!

I think that Hammer of Purphoros and Quest for the Goblin Lord are unnecessary and could easily be more goblins to add to early game pressure. Also, 1-2 Blood Moon mainboard would not be a bad idea if you're running only lands.

I've been thoroughly surprised at how effective at saving me mid game the Hammer is; once I hit five lands, getting uncounterable hasty 3/3 Golems can often get that last bit of damage in, especially if I'm on the run a bit.

The Quests I'm beginning to agree with--they were originally Obelisks of Urd, then these and when they go off, they're awesome, but I usually end up having to choose between a turn 1 or 2 Legion Loyalist and the Quest, which really isn't beneficial. Do you have any suggestions for Gobs that might help buff their ilk?