Amity, Teddy of Destruction

You may play Amity, Teddy of Destruction
without paying its mana cost if you can convince
two players in another game in the same room as
you to sacrifice a land and discard a card.
When Amity, Teddy of Destruction enters the battlefield, every player in every game currently
being played in the same room as you sacrifices
each non-black creature they control.
"I, Amity, demand sacrifice."