Hum,
I just realized this :
*****Please don't forget!!!! After you defeat an enemy or explore a location to set it aside just as you would in a normal game with an enemy or location that has victory points. But only do this for defeated enemies and explored locations, not for shadow cards!!!!*******
I have just discarded ennemies and locations and reshuffle the deck till i hit 60 threat or all my heroes were dead.... so don't count my score for the tournament.
I'm so sorry