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.
![Sheoldred, Whispering One [New Phyrexia Prerelease Promos]](http://paradoxtcg.com/cdn/shop/files/72ddbbac-9914-44ff-b4d4-60989031744e_4d7cab21-cdbb-4967-bbcc-2433ab14b4b9.png?v=1776234189&width=1445)
