Sheoldred, o Sussurrador / Sheoldred, Whispering One

Sheoldred, Whispering One {5}{B}{B}
Legendary Creature — Praetor
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.
6/6
Illustrated by Jana Schirmer & Johannes Voss