Aurin and Willonia

Eminence — Whenever another nontoken
creature enters the battlefield under your
control, if Aurin and Willonia is in the
command zone or on the battlefield, investigate.
{t}, Sacrifice X Clues: Reveal the top X cards of
your library. You may put a nonland permanent
card with mana value X or less from among them
onto the battlefield under your control. Put the
rest on the bottom of your library then shuffle.