TrinityCore/TrinityCore — comment on commit 41488c9deb48f2e3356baca48d049ef28e308fce
File: src/server/scripts/Northrend/Naxxramas/boss_thaddius.cpp line 427
By joschiwald:

i see it: http://www.wowhead.com/spell=39096#used-by-npc
Mechano-Lord Capacitus :D