This is pretty awesome. It's pretty good just as an uncounterable Clone, though the mana requirements are hefty (sensibly so).

Indeed, it needs to be pretty costly. The land types make it quite good, but I felt they were almost necessary to preserve as much text box space as possible.
Thanks for saying it's awesome. :)

But you can always play this as a Forest Island, right? I wish there was a way to make that more obvious, though, I have no idea how.

Alternatively, would this be better as a one shot activated ability? It would let me play my land...

What are you talking about, jmgariepy? I thought it was completely obvious that you could play it as a land. The word "may" is right there.