Emergent rules!!
Combat is collaborative and engaging and I love being able to craft or "invent" my own weapons and armor. I also really love the mystery element to it: you have to learn about the monster by interacting with the town and the places it's been. Every power I've played has been an absolute blast; my only complaint is that it's hard to choose just one! So fun to roleplay with friends and then fight a monster and/or a government agency :)
15/10 Can't wait to play again :)