Creating creatures that can go into combat is great, however, using them for Waterbending is mostly a secondary thing
If you wanted to replicate that Draft experience in Cube form, you'd usually build a Cube consisting of one copy of every rare and mythic, two copies of every uncommon, and three copies of each common from DMU
Jump the complications hurdle and youve got an awesome recursive Azorius commander that can bring back lock pieces or value enchantments while drawing into extra cards
There is a Buster Blade in the set that should synergize quite well with Cloud, but as of the writing of this article, we havent seen it yet
We're not using skulk as a keyword anymore, but the ability is still in use, as evidenced by Locke, Treasure HunterLocke, Treasure Hunter