BUTTERFLY: It’s funny how things work out. Once per mission, you can choose to have an extraordinarily unlikely set of circumstances or coincidences resolve any one challenge, obstacle, or situation--within reason--that you are personally involved in. Afterwards, the referee will tell you what you need to do in the past to make sure these circumstances arise; the greater the magnitude of the resolution, the more difficult the setup becomes. Failure to do so will result in a time paradox and the subsequent erasure of your personal timeline as time repairs itself.