It's been a while, but I was thinking the "Fish of Furry" tactic. The Tau and Eldar both could pull it off. But I heard the Devil Fish and Wave Serpent don't move the twelve inch like they use to. Can somebody fill me in?

Reguardless, I still think it would be fun, bur who can do ir better? Not just on their own, but jive with the traits and tactics of the rest of their army.