Oh hey, its a card that removes treasures
Many commanders tell people what you are playingAzami, Lady of Scrolls says one thing, and Rhys the Redeemed says another
There's a big advantage to sneaking it onto the battlefield, despite the cost, because when it deals combat damage to an opponent, you can pull a creature from that player's graveyard, which then enters the battlefield under your control, tapped and attacking that player
Then exile it.) Sorcery Wake the Dragon Create a 6/6 black and red Dragon creature token with flying, menace, and "Whenever this token deals combat damage to a player, gain control of target artifact that player controls." Flashback (You may cast this card from your graveyard for its flashback cost