I was jk but really.
12!
(In the event of an attack or certain action, I will roll a D20. If you guess right, and the number is within the range that you chose; IE, 1-9 and you chose a 7 and it lands in that range, the outcome is good. If it turns out to be in a different range, bad things happen.)
THE D20 ROLLS
7
GUY 2 FIRES HIS WEAPON
THE BULLET BURSTS FROM THE GUN AND PIERCES ECTOR'S SKULL
ECTOR IS STRUCK DOWN
NIVEN DRAWS HIS WEPON
QUICK, CHOOSE A RANGE. 1-9 OR 11-20!