Lawless Navigator

Whenever you play a land, create a Map token.
(It's an artifact with "{1}, {t}, Sacrifice this artifact:
Target creature you control explores. Activate only as
a sorcery.")
{1}, {t}, Sacrifice two Map tokens: Search your
library for a legendary land card or a land card
with an activated ability that isn't a mana ability,
put it onto the battlefield, then shuffle. If it
enters the battlefield tapped, untap it.