Lurking Assassin

Whenever Lurking Assassin deals combat damage
to a player, draw a card.
Dwell {b} ({b}: Exile this card dwelling in target land
you control.)
As long as Lurking Assassin is dwelling in a land,
that land has "{1}{b}{b}, {t}, Return each creature
dwelling in this land to the battlefield under
your control: Destroy target creature."