Spine of Deathwing
Burning Tendons health has been reduced by 15% in 10- and 25-player Heroic mode. This change eases the burst damage requirement to complete the encounter, which should allow players to make use of more varied raid compositions.
Thank god, No really thank god.
+ Clarifying with the 15% + 5% with the math involved apparently tendrons have now 19.5% less health.