Notes & Combos
I like Goblin Biker and I like Memento so I just played both.
Gossip Shadow can be used to negate a handtrap and then overlay it under Pair-A-Dice to fulfill the 3 material requirement for its second effect.
Cranium Burst is optional but makes some matchups really one-sided, particularly Snake-Eye.
Book of Eclipse is good against Blue-Eyes.
You could opt to cut some Goblin cards, add Imperm or Droplet, or whatever. It's flexible. I just ran 44 to minimize the risk of Cranium Burst or Ghattic in my starting hand. You could probably go up to 50 with Terrortop etc but consistency will suffer.