Sivriss, Nightmare Speaker [CLB - 148]

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.)

Rarity: Uncommon

#: 148

Card Type: Legendary, Creature, Legendary Creature — Snake Cleric Warlock

Card Color: B

Casting Cost: {3}{B}