Master of All Elements

Enchanted (When this enters the battlefield, you may
put an Aura card from your hand onto the battlefield attached to this.)
Whenever a nontoken Aura enters the battlefield
under your control, you may create a token that
is a copy of it. If you do, attach it to Master of
All Elements.
Master of All Elements gets +1/+1 for each color
among permanents attached to it.