I want to hear some opinions and ideas about Stunts and designing Stunts. For instance what was the sickest gruesome stunt you came up with in fate core? Did it cost a FATE Point or form of currency in other ways? (Such as Physical and Mental Stress, Doom Points, etc) I designed a Stunt for FATE Core I find to be sick because it helps my character a lot but then it can turn on my character as well. I used the Trouble Aspect of the character to help but it costs not a fate point but a Will check to receive or withstand mental stress. Forbidden Knowledge - Since I have a "Dual Identity - Nyarlathotep" and I am a "Novice User of Magic" I can cast any spell I desire at the cost of a Will Check or Mental Stress. I use two aspects in conjunction with one another. I used my Trouble and then one of my Other Aspects to be able to cast any spell I think of. However that doesn't mean the GM can't say at the start of every session I compel your trouble please roll a Will Check to resist the other Identity coming out. At the same time I have to roll a Will Check in order of using that stunt to see if the other personality takes over. It doesn't say in the rules you can do that but hey I am open to new ideas. So what is the sickest most gruesome stunt that helps and hurts you that you guys came up with in the past. I want to see what other GMs and Players have come up with.