Earth Shock, Lightning Bolt, Rockbiter Weapon, Forked Lightning - so many good shaman class cards. 3 of them can hurt really painfull especially with spellpower buff not only at early stage. And they are so cheap. Rockbitter is just like 3/1 weapon for only 1 mana! All this stuff combined very good with overcharged effect. Turn 3 Feral Spirit and on turn 4 you can still use this awesome cards!
Some thoughts about totem spell? imo totems are good as 2 mana drop.
very constructive post d3management, are you collecting ranks?
OT: You're deck is a bit of both which usualy doesn't end well. You got flametongue totems which buff your field while you dont have that many cards to play on the field. Replace those with harvesters. 2 mana tide is an overkill and they will get destroyed too fast. Either pick 1 or replace 2 and put in a gadgetzan auctioneer (it does wonders with the amount of spellcards) Unbound elemental are a bit tricky to me, they come at decent cost with decent stats but I find them not good enough to fill in, if they work for you, keep them. Good luck with the rest of it.