Snakes. Why'd It Have To Be Snakes? Achievement does not work even if you does not wrap on snake tramp. But if you kill Slad'ran fast, achievement is properly completed, so what is wrong is the snake wrap.
Drakkari Colossus not works at all. Activate him impossible.
Moorabi <High Prophet of Mam'toth> transformation should be brokenable by players.
Moorabi <High Prophet of Mam'toth> transformation cast time should be different depending on dps.
Eck the Ferocious (Only on Heroic mode) http://www.wowhead.com/npc=29932 enrage starts at 10 hp but should depends on time and not on hp.