: Duel Masters
: Great Decisive Battle: Allstar 12
Shield trigger (When this spell is put into your hand from your shield zone, you may cast it for no cost.)
* Choose a race. Return any number of creatures you have in the battle zone that belong to that race to your hand. Then, return a number of creatures in the battle zone equal to or less than the number of creatures you returned to your hand to their owner's hand.