Bringer of Trade

{b/r}: Choose one:
•You control target creature you don't control.
Then you give an opponent control of target
creature you control. Those creatures' abilities
can be activated as if mana spent to cast them was
any color.
•Activate the above ability, but instead swap an
artifact or enchantment you control with one that
your opponent controls with the same type and
the same or less converted mana cost.