A subquestion of How does animated water work?
When a player conjures a creature formed of animated water, for example a Small horse, I find it works best to model that animated water as a CR0 creature with the Elemental type. How can I get appropriate stats for such a creature quickly? That is, when a player forms a 5' cube of water into a horse, I know from experience that it should be Medium or Small in size, and when they turn that cube into a duck, a rooster, and an eagle instead I know that they should be Tiny, Tiny, and Small respectively. I still need to give each creature an amount of hp, speed, and potentially traits and actions. Is there a way to do this quickly while ensuring my players can predict what the stats of a creature they make will be yet also the effect isn't going to make creatures of a power level greater than CR0 should justify? What can I do to speed up this process without unbalancing it?