Sivriss, Nightmare Speaker (Commander Legends: Battle for Baldur's Gate)

Legendary Creature Ñ Snake Cleric Warlock - {T}, Sacrifice another creature or an artifact: For each opponent, you mill a card, then return that card from your graveyard to your hand unless that player pays 3 life. (To mill a card, put the top card of your library into your graveyard.)
Choose a Background (You can have a Background as a second commander.)