Sheoldred, Whispering One [New Phyrexia Prerelease Promos] Cat Construct then discard one of them

then discard one of them

{1}{G}{W}{U}: Put Derevi onto the battlefield from the command zone

He ensures not only whether but also when and where the lightning strikes twice

Flashback—Sacrifice three creatures

exile two creature cards from your graveyard

Sheoldred, Whispering One [New Phyrexia Prerelease Promos] Cat Construct then discard one of themSet: New Phyrexia Prerelease Promos Type: Legendary Creature Phyrexian Praetor Rarity: Mythic Cost: {5}{B}{B} 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.