Millennium Rod

{t}Exile cards from your Graveyard. Take control
of a target with a converted Mana cost equal to
the number of cards exiled until the end of the
turn. This can affect Walker Proof Targets.
{t}Take control of a target that meets the
following requirements:A Converted Mana Cost
equal to or less than your Mastery. If the target's
color is different than you, increase the Mastery
Cost by one. If it is a Rival color, increase it by 2.
{t}Destroy an Aura on a Target.