It's only utility is to transport units anywhere on the field.
Only be able to build 1 for balance... It can hold 5-10 or what ever amount is worth wild of troop space. It can't carry a pekka either for balance too.
Have it cost a high amount of dark elixir, maybe less the the lava hound.
I think this will add a huge amount of strategy to the game along with a. Cool mechanic to look out for... I'm thinking you can use it as a pick and drop kinda method. Pick where u wanna use it and drop it there like a spell. I can see this unit as a cool unit to add some spice to the units that is really different...
Have it be beefy like 1000hp no attack. Upgradable 2-3 times each bumping up a little hp and troop space
