After more consideration, it might be better to add an additional ice shield instead of using the squids since they deal so little damage. The crawlers would be a better choice to go with as a back up for damage. The deck would go up by one card if you did this but I think the advantage outweighs the bad here.
Edit: Also, inserting toadfish instead of crawlers may be an option if one feels as though quanta will not be a problem. They can withstand firebolts, etc. and poison otys if ingested...just a thought tho