Black Sands

Black Sands enters the battlefield tapped.
It doesn't untap during your untap step.
Skip your beginning phase and lose 5 life
to untap Black Sands.
{p/b}{p/b}{p/b}{p/b}{p/b}{p/b}{p/b}, {t}:
Each player exiles all creatures from the
battlefield, their hand, and their library.
Each player returns one creature from their
graveyard to their hand. Exile Black Sands.