Hey Guys and Gals,
Just a quick heads-up with the recent update to the Details: Damage Meter addon there is a known bug that shows the numbers for the warlock spell Demonbolt being WAY higher than normal.
If you come in contact with this bug please ignore it, they are working diligently on a fix that should be implemented as soon as possible. Hope this clears up any confusion that might come from seeing such high numbers after an arena match.
Thank you, merry Vault Day.