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 (Phyrexian) [Secret Lair Drop Series]](http://www.cosmicgames.com/cdn/shop/files/18206ae6-08e2-4ad2-bc0a-6626a89b9516.png?v=1759392381&width=1445)
