Selune, Oracle of Phenax

When Selune, Oracle of Darkness enters the battlefield, each opponent puts cards equal
to your devotion to Blue and Black from the
top of their library into their Graveyard.
Constellation - Whenever an Enchantment enters
the battlefield under your control, Target
Player puts cards equal to your devotion to
Blue and Black from the top of their library into
their Graveyard.