With 6 Octopi, you have stallpower against 24 creatures. Spine Carapace is therefore close to pointless, as everything will be frozen anyway.
You only have 6 creatures, so Feral Bond can heal MAX 6 hp. Adding more SoG or even heals would be much better, and much more cost effective.
Ideally, you want either more creatures, or more damage to make it viable as a 30 card deck, because if your Octopi are all killed, you might end up losing by deckout.