commanders are super useless on water-based maps... maybe something like a Raider ship that allows commanders (and other melee units) to attack on water, but its real expensive? There are many maps where in arcade you just can't use the commander for the entire match unless you put them at huge risk! so having a raider ship to utilize them would be real nice... at most to allow them to do all the attack and groove on the open seas, at the least? allow them to groove at sea!
The idea is interesting, but im not sure if deploying a transport unit which makes the commander effective on water may change the water unit's meta. Harpoon and cannonships are indirect units, and commanders would be able to do their damage without counterattack. Commanders are also deadly to mermen, so turtles are would be the only way to stop him by water means. But what if enemy places hero and one or two harpoons? technically you cant approach him effetively neither by water or air We are obviously assuming that commanders cant use their grooves outside ground terrain, otherwise commanders like caesar or mercia can easily destroy the balance in water battles
