What's Yours Is Mine, Right?

When you cast What's Yours is Mine, Right?,
any opponent may call a judge to the game. The
judge looks at your hand to determine if you had
enough mana to play any other spell instead of
What's Yours Is Mine, Right?, regardless of card
type. If you did not, gain control of target spell
you don't control. If no opponent calls a judge to
the game, gain control of target spell you don't
control. Its controller draws a card.
...Right?