Here's my first draft of a Shamurloc deck. I'm 3-0 so far in Ranked, albeit I barely touched Ranked this season so far so I'm only at rank 16 now. Two games were blowouts, one was a closer match versus a Mage but I still ended up winning with 4 cards in-hand and about 13 life left.
So far, I love it. I'm considering swapping out Mana Tide for another Coldlight Oracle. Also, haven't used Lightning Storm yet so I almost wonder if I'd be better off swapping it out for a 2nd Hex or a 2nd Murloc Raider. Between Neptulon, the Slitfins, the Coldlight Oracle, and the Mana Tide Totem, I feel like my card draw isn't too bad which was previously the major limitation with Shamurloc decks. I haven't used Bloodlust yet either now that I think about it, but it seems like it should be nice as an extra win condition.