Exki, the Pathfinder

Nonbasiclandwalk.
When Exki, the Pathfinder enters the battlefield,
each player sacrifices a land at random, then each
player reveal cards from the top of their library
until they reveal a land card, then put that card
onto the battlefield under their control. Put all
other cards revealed this way on the bottom of
their respective libraries in a random order.
I am sure the Mwonvuli is this way...