Shadow of the Dark Dawn

Destroy all creatures, then exile any amount of
creatures from all graveyards. For each creature
exiled this way, create a colorless Fragment
artifact token. (They're artifacts with "Sacrifice
this artifact: Add {c}.")

"The Dark Dawn is the bane of existence, created by
the Vreul. It burns skin leaving nothing but bones
and boiling blood." - Torae, Second Seer.