Jarad, Undercity Crypt-King

Deathtouch
Each basic land you control has "{t}, sacrifice this
land: Search your library for a basic land card
and put it onto the battlefield."
If you control seven or more lands, you may play
lands from your graveyard as if they were in
your hand.
The affairs of the surface matter not to the under-city.
Its job is to turn the waste into something more useful.