Sheoldred, Whispering One - New Phyrexia #73

Sheoldred, Whispering One

Set: New Phyrexia (NPH)
Collector Number: 73
Type: Legendary Creature — Phyrexian Praetor
Rarity: Mythic
Mana Value: 7.0

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.
At the beginning of each opponent's upkeep, that player sacrifices a creature of their choice.