Mythic Razsageth has received some massive nerfs on the Weekly Reset, reducing the health of every mob on the entire encounter. These massive nerfs should help guilds who are going for Cutting Edge: Raszageth the Storm-Eater before Aberrus releases! These nerfs are now live on US Servers and were briefly live on EU Servers but seem to have been rolled back.
Thanks to Tarlo for linking a log for comparison.
Boss Health health reduced by 5% Intermission 1:Surging Ruiner health reduced by 15% Oathsworn Vanguard health reduced by 15% Stormseeker Acolyte health reduced by 15% Flamesworn Herald's health reduced by 15%Flame Shield shield amount reduced by 15% Frostforged Zealot health reduced by 15% Intermission 2:Colossal Stormfiend health reduced by 15% Electrified Colossal Stormfiend health reduced by 15%Seeking Stormling health reduced by 15%/ul]. Read more on wowhead.com