Llanowar Infiltrator

Spy {g}
{t}: Add {g} to your mana pool.
If you do not own Llanowar Infiltrator, put a
land counter on it whenever it taps for mana. Whenever Llanowar Infiltrator has 2 or more
land counters on it, remove those counters and
its owner may search their library for a basic land card and put it onto the battlefield under their control, then shuffle's their library.