text: If one of the tokens can't attack the appropriate player, its controller is free to have it attack any other player, planeswalker, or battle or to not attack with it. If there's a cost associated with attacking the appropriate player, its controller is free to have it attack any other player, planeswalker, or battle or not attack with it. However, if there's a cost associated with that token attacking at all, that token has to attack the appropriate player or not attack.