This is a Goblin Bomb themed deck but instead of throwing them one by one at your opponent, you're looking to throw a whole bag of them at once and then do it again and again.

The best situation is Jepetto Joybuzz into Necromechanic+Spiritsinger Umbra and full cost Boommaster Flark 

As a follow-up you got Feign Death and/or Void Ripper for another burst and since your only deathrattle are bombs, N'zoth will bring back more stuff to throw at the face!! 

Important : Master's Call should be used to get smaller minions out [ Void Ripper , one of the Necromechanic or Emperor Thaurissan ]so that the Jepetto Joybuzz pull is better.  Alternatively just pulling the Joybuzz himself could be worth it.