Oooh, turn all your land-search into perfect tutoring. That's a SHINY thing for green.

The second ability makes it so you can't play nonlands anymore, since they require casting but are no longer spells.

Does this work?

Gibber! Now it's perfect tutoring AND free to cast everything. But only one permanent a turn, unless you've got additional land drops...

That's what it was meant to be before.

Certainly absurd when casting things like Emrakul, Omniscience, etc. And pretty nuts when using additional land drops. Pretty strong even without either of those, just as perfect colour fixing and a powerful tutor enabler. Though, hmm, in EDH does this stop you from playing your commander?

Looking at the rules for EDH - seems not. It says "Played"; so you'd use up your land drop as normal; and have to pay the additional cost. You can't select a land as a general; but nothing stops you using it once it is, I don't think.

Also - this works nicely against people who steal control of your stuff, too.

Of course, the most amusing thing about this is that it works best if you've got a lot of land-search.

And if you've got that, why not just CAST your big stompy things? (Also, doesn't this make lands that have casting costs? I think you just ignore them as irrelevant?)

I suddenly want a Land Creature commander.

Actually, it's ridiculous in Commander. You have to pay as an additional cost to cast your general; you don't cast lands; therefore, the commander tax isn't applied. Yikes!

I've basically created this card twice between this and Vines of Verdure.