The Writhing Kingdom

{t}: Add {c} to your mana pool.
When you cast The Writhing Kingdom, target opponent exiles the top four cards of his or her library, then you may put any number of land
cards that player owns from exile onto the battlefield under your control.
The kingdom of Ivernhold put up a good fight against
the lifeless that invaded it. However, they eventually
joined their invaders--forever.