Millennium Rod

Ward {4}, Millennium Item(If your commander is a Planeswalker you may have this card be in your
opening hand.)
{x}:Gain control of target creature, or Planeswalker,
with a mana value of X. If the target is Legendary,
then at your next end step return the target to its
owner.
Planeswalker abilities your opponents control cost {p/c} more to activate.