I wrote a few weeks ago about my dislike of Manatide Totem. I feel as though Acolyte of Pain is going to act as the strictly better card, in practice, more often than not. If Manatide Totem is working as intended, you're already ahead and that's all this deck needs. Acolyte of Pain makes it possible to keep up if you start to slip which I find to be more useful. It's a race for board control.If you want to tighten the deck up a bit, you definitely want 2x Lightning Bolt, 2x Stormforged Axe, 2x Feral Spirit, and probably 2x Earth Shock. All are common except for Feral Spirit. Otherwise it looks fine and I can't really make a bunch of suggestions without just saying cram your deck full of more rares, epics, and legendaries. Also Rockbiter is a very commonly played removal spell.
Although you probably want at least one mana tide also since you don't have Pagle.
I think I will try 2x Stormforged Axe though. Been looking for an excuse to. Maybe I'll take out the owl.