just admit - you've read somewhere on forum how someone has done no loss impossible game using black knights and now you think you can do it too, even though you don't know some elemental things about the game?
i love these "instant guru" wannabes
a friendly advice: play couple games for fun and during that time try to learn about game mechanics, units, enemies, their abilities & spells. once you learn (among other elemental things) answers to your (noobish
) questions, then you're ready to do impossible no loss game.
cheers