Rathnali, Creative Clairvoyant

Rathnali, Creative Clairvoyant gains hexproof,
reach, menace, and "whenever this creature
attacks, scry cards equal to its power" if you
have 4 or more colorless artifacts under your
control.
As long as Rathnali, Creative Clairvoyant is
in the battlefield, before your draw step draw
a card.