*cough*cough*hack*cough* I'm offering you the chance of a life time just get near me & catch my cough... j/k! However... what if you COULD have a really cool power at the cost of your health? Like say you'd have power to infect computers & video games with a virus by coughing on them... but because of that you'd always be sick with a cough.
confused Or for another example you could like Rasitlin Majere from the Dragonlance novels who somehow sacrificed his health for dark mage power & now coughs up blood.
eek