We can't find how to figure out the DC that a PC needs to roll for a reflex save when skeleton does this to the PC: "When the skeleton is destroyed, its bones shatter and explode as the necromantic energy holding it together is released. Adjacent creatures take 1d6 slashing damage per 2 levels (minimum 1d6) with a basic Reflex save."
The PC rolled a 12. How do we determine the DC for his save roll?
