goblin deck - need advice

this is meant for post-rotation. i cant afford fetch lands although i dont think they are necessary. i also dont have leyline of punishment but if i get it ill put 4 in my sideboard. instead i have unstable footing which can save my life with a little more work. if i drop warren instigator t2 then i go for a t3 goblin swarm. to help with this my deck has various burn cards to clear a path, and ember hauler can do the trick sometimes too. smoldering spires is also there to help. so with all of this considered my deck should be able to pull off a t3 goblin swarm if i hit warren instigator. i also have a devastating summons finisher combo with goblin bushwhacker. the rest is just an attempt at balancing things out. any advice would really be appreciated.