I wouldn't underestimate this. Hydrologist proved that a 2/2 murloc with a nice battlecry can become a staple card. This is more tempo-oriented, making it more well suited to shaman's playstyle, freeze synergy or not. Nice to fetch with The Curator and stall in a control or midrange deck, nice to hold back a weapon hit or trade in an aggro deck. It will also bump shamans up nicely in arena.