Yes, it is a full functioning copy. Dudu is at 10p though, so it should be carefully used.Does Dudu trigger the ability of the unit that it copies? I haven't used him myself.
Oh, that was the question. Your description is correct. Order units work fine, given you have the requirements for them to work. Deploy of course doesn't, since you don't play out the card.It doesnt allow you to use the deploy effect of a copied unit. Havent tried it yet on an order unit, but my guess is that it'll work, and you can use order a turn after.
I see it like you, that's why I pointed out, that for 10p it needs to be used carefully. I could imagine situations, where it could pay off (to counter cooldown units, for example), but I've also fallen into the trap once to put him on board forgetting that the card I copy needs to be in a specific row (and I placed Dudu -of course- in the wrong one). But then again, I'm known to be a derpHmmm Dudu seems kinda expensive to run if that's the case, uh?