Wake of ashes wont sim

trying to sim my dps on a target dummy and for some reason wake of ashes will hit 3-6 million and its really bugging me out cos I wanna get a grasp on my average single target dps but I cant when it jumps straight to 500-600k in my first burst and then bumps up heaps every time WoA comes back around, any help would be great, only happens on target dummies

Which target dummies are you using? Wake of Ashes is an AOE hit. So if you’re using the ones in stormwind, with baby target dummies around it, you’ll get a huge burst.

I recommend using the stand alone raiders target dummy in iron forge - no chance of AOE hits with that one.