Uckfup is meant as a simple raid failure mod, that focuses on not being evilly coded as well as being able to add (or modify) failures through the fails.lua file without hassle. Also should work for any localization without any changes as it uses spellIDs for checking failures, instead of straight spell names.

To reduce spam, it will group the same failures within 4-5 seconds with each other, so if 3 people fail at Ground Tremor, instead of showing 3 failure messages, you will see "A, B, C have failed at Ground Tremor"

You can use /uckfup toggle to disable/enable it completely, however it will only monitor events while inside a raid instance, so you do not need to disable it while not raiding.

Quick list of Ulduar fails:
Biting Cold (>=3 stacks), Flash Freeze, Devouring Flame, Flame Jets, Light Bomb (hit 3 people), Gravity Bomb (hit 2 people), Overload, Focused Eyebeam, Seeping Feral Essence, Ice Shard, Lightning Charge, Runic Smash, Unstable Energy (>= 2 ticks), Bind Life, Ground Tremor, Rocket Strike, P3W2 Laser Barrage, Shock Blast, Proximity Mine, Bomb Bot, Flames (Mimiron hard mode), Sapper Explosion, Saronite Vapors (More than 12,800 damage a tick), Shadow Crash, Death Ray, Brain Link (More than 1,800 damage), Snaplashers (With >= 30 stacks of Hardened Bark)

Quick list of Trials of the Crusader fails:
Staggering Stomp (Interrupted by it), Fire Bomb (>= 3 ticks), Slime Pool (>= 3 ticks), Trample, Dark/Light Vortex (10,000 in 5 seconds), Unleashed Light/Darkness (15,000 in 5 seconds), Touch of Darkness/Light (20,000 in 8 seconds)

Slash commands: /uckfup (/fail)