When you bring your troops into play they will march endlessy forward through the level. Every so often the option to select your character portrait which is located at the top-left hand corner of the screen will become available which will command your troops to start marching towards your hero.
Here is a hint everyone I know that you guys really badly want a hint ok so here it is first you go to 60 percent on more power click on that two times and if you have enough coins it should work and you will actuall be dresses as a knigh make sure you have enough coins or it will NOT WORK RAPEAT NOT WORK so if you have not enough coins it will NOT WORK!!!!!!!!! So please no bad comment or anything bad have a nice day everybody well bye
When your character is killed you will be given a chance to resurrect them. Doing this will cost you gold coins and more often than not you will be better served by just restarting the level and using the strategic knowledge gained from your failed attempt to make a better new attempt.