Oreste, Haunted by Demons

+1{e}: Create a 2/3 black Nightmare creature
token with "Whenever this creature attacks or
blocks, each opponent exiles the top two cards
of their library."
-3{e}: Return target nonland permanent to its
owner's hand, then that player exiles a card from
their hand.
-7{e}: You may cast up to three spells from
among face-up cards your opponents own from
exile without paying their mana cost.