I think you should be more creative in the application of the triangle. I say, when a minifig uses it (and it should be rather difficult to obtain) He get's ossum building powers, and is able to summon a powerful lego vehicle/thing. Like a tank, or a robot, or a tank that turns into a robot. Of course, a fail (which is just as common. say 50/50 chance) will result in the fig being disassembled and integrated into the really ossum vehicle/thing under the opponent's control. Then you'd better figure out how to reverse the powers of the triangle job before it's too late!!!
<a href="http://photobucket.com" target="_blank"><img src="http://i150.photobucket.com/albums/s113/Demo_Thesis/achphp.jpg" border="0" alt="Ossum Sauce"></a>