Riftwalker

-If a position on the field is unusable, this card
may attack directly.
-During your turn, while this card is on the field,
you may select an empty creature position on
your opponent's side of the field. Move this card
to said position. This position is now considered unusable. This card cannot be used by your
opponent to attack, nor can they use it to tribute summon. At the end of your opponent's turn,
return this card to your side of the field.