Yeah, you are right. Funny that you mention this two Cards. To be honest, i added them after my first Game, forgot to mention that. It was a Reaction on my first Game were i missed a Frontline Creature to make it less fast.
My normal Card Draw Magic Deck last Week was this one without Iron-tooth Goblin:
https://gudecks.com/decks/GU_1_4_BBgBBgBDrBDrBGyBGyBHMKAaKAaKAmKAmKAqKAqCAmCAmCAnCEkCEkCEqCEqCFiCFiCFnCFnGAVGAgIBAIBkIBmIBq?godPowers=100127
This Version with the iron-tooth was my First WR Match Deck.