This deck was removed and replaced by the Shields Up! Deck Recipe in the Hearthstone 5.0.0 Patch.
Official Description for the Tide of Murlocs Deck Recipe
Summon the greatest army of the tides. You’ll need to practice your battle cry! All together now: “MRGGLGLGGGL!”
Deck Update
The Tide of Murlocs Deck Recipe was slightly updated by removing Old Murk-Eye and replacing it with a second Guardian of Kings. This was done to make the deck Standard format compliant.
Would Vilefin Inquisitor not be a great card in this deck ??? means your hero power would summon murlocks
Well, that card might get added once WOG is released. This is a Blizzard Deck Recipe so WOG cards aren’t available yet.