Sheoldred // The True Scriptures (Showcase Planar Booster Fun) [March of the Machine]

Menace

When Sheoldred enters the battlefield, each opponent sacrifices a nontoken creature or planeswalker.

{4}{B}: Exile Sheoldred, then return it to the battlefield transformed under its owner’s control. Activate only as a sorcery and only if an opponent has eight or more cards in their graveyard.

(As this Saga enters and after your draw step, add a lore counter.)I For each opponent, destroy up to one target creature or planeswalker that player controls.II Each opponent discards three cards, then mills three cards.III Put all creature cards from all graveyards onto the battlefield under your control. Exile The True Scriptures, then return it to the battlefield (front face up).