Lady of the Oligarchy

Shroud, Flying
Whenever a nontoken creature you control dies,
you may pay {w/b}{w/b}{w/b}{w/b}, if you do, create X 1/1
white and black Spirit creature tokens with flying
where X is equal to your devotion to black and
white.
Sacrifice eight spirits: Return target creature from
a graveyard to the battlefield under your control.