To play this in a contest, you need a Water Neopet. When you bank
this card with a Water Neopet or Hero, choose an arena. You may choose
one Neopet controlled by each player in that arena, untap them, and
exchange control of them. (They cannot be traded in or replaced). At the
end of the turn, each one goes back to its owner. (Each one stays in
the arena it is in at the end of the turn.)
