DrDamage
In-game theorycraft. Calculates actual damage/healing based on gear, talents and buffs.
The Burning Crusade 
Cataclysm 
Mists of Pandaria Addon Details
Expansion
Developers
Having issues?
DrDamage displays the calculated, average damage or healing of abilities with talents, gear and buffs included on your actionbar buttons. The addon will also add various information to the default tooltips in your spellbook and on the actionbar.
Download DrDamage
Wrath of the Lich King
3.3.5More addons for Wrath of the Lich King
Discover other addons that might interest you
Yury’s RuneDisplay
Very simple and lightweight addon for display of a Death Knight's runes (because the default…
Buffwatch++
Buffwatch++
AdvancedIconSelector
Adds search functionality to the icon selector dialogs.
TitanPanel
Adds a display bar on the top and/or bottom of the screen.
BiS-Tooltip
BiS-Tooltip - is an add-on providing in-game information about best in slot items.
CoolLine
Shows cooldowns on a single bar.
KickAlert
Warn when it is your turn in a kick or other rotation.
CTMod
CTMod customizes your interface to include hotbars, buff timers and much more.