Babaiki Imitator

Landfall - Whenever a land enters the battlefield
under your control, reveal the top three cards of
your library. Put all land cards revealed this way
into your hand and the rest into your graveyard.
Any time a land card would enter a graveyard,
instead its owner puts it on the bottom of their library.
The Babaiki aren't known to teach humans, but some
have managed to learn their ways regardless.