I’d like to hear stories about your favorite Big Bads. Specifically, I’d like to know how you use the rules to make them really challenging to the players. I’ve read Sage’s “The 16 HP dragon” blog post, but I would like to know how this works in action.
In particular, I am concerned about taking away the successes/potency of the PCs by having such a very powerful enemy that is either too fast or too tough for them. For example, what happens when a thief tries to backstab a vampire lord who is super fast and know that the thief is coming? Does the thief even get to roll?