I built a murloc deck just for fun, but it really seems to be terrible. In order for any of them to survive it seems like you need to be able to play one of the 3 cost murlocs. even if I get to that point, the enemy will ALWAYS have whirlwind, arcane missile, consecration in their opening hand. I have read that the game needs to be over by about turn 6, but it doesnt seem possible to get to that point in good shape. If I use any of my removal spells, I have no mana to summon any murlocs, and the murlocs will not survive anyway.

This deck doesnt seem to be that great, but I cannot afford a giants deck.