BigWigs is a boss encounter add-on. It consists of many individual encounter scripts, or boss modules; mini add-ons that are designed to trigger alert messages, timer bars, sounds, and so forth, for one specific raid encounter. Big Wigs

The ultimate encounter helper to give you fight info that's easy to process. Deadly Boss Mod

Decursive is a cleansing mod intended to make affliction removal easy, effective and fun for all the classes having this ability.  Decursive-2.7.3.2

A collection of BigWigs modules for bosses found in 5-man dungeons and scenarios. Little Wigs

WeakAuras is a powerful and flexible framework that allows the display of highly customizable graphics on World of Warcraft's user interface to indicate buffs, debuffs, and other relevant information. WeakAuras

GTFO provides an audible alert when you're standing in something you're not supposed to be standing in. In some cases, you'll be warned before you start taking damage. This mod improves your situational awareness and is recommended for dungeon divers and raiders of all skill levels as even the most seasoned veteran sometimes needs a reminder to GTFO. GTFO-4.34.1