So my group tried out story 3 for the first time, which is a very wide open scenario. I also had the pyromaniac card.
I had 4 investigators, so 4 threat per round. I started out solely using the pyromaniac card, getting to place 2 fire tokens a round.
Because the outdoor rooms are so large, I quickly engulfed the entire outdoors in flames. I made certain not to spread fire into sealed doors, but ultimately I was able to cover every outdoor room (I only stopped because I ran out of fire tokens).
This resulted in a barbaque of my players. By the time they got into the lower levels and I switched to zombies to fulfill my objective, they were so worn down I was able to dispatch them easily. What made it worse was when they got a new investigator, because they have to sit at the start location for one round they immediately took 2 damage from the fire.
I saw nothing on the pyromaniac card that says can only be used once per round (unlike many other cards that are very specific about it), but my players had a terrible experience and called shenanegians.
Am I missing something?