I don't see any blue posts, so I'll list the ones I found here:
DH
Lorthamus Thalipedes' Sacrifice 20% -> 5%
Kirel Narak 3 sec -> 2 sec
Fragment of the Betrayer's Prison 20% -> 15%
Cloak of Fel Flames 20% -> 15%
DK
Tak'theritrix's Shoulderpads 50% -> 30%
Uvanimor, the Unbeautiful 15% -> 10%
Service of Gorefiend 3 sec -> 2 sec
Shackles of Bryndaor 25% -> 15%
Toravon's Whiteout Bindings 20% -> 15%
Druid
Skysec's Hold 15% -> 12%
Dual Determination 20% -> 15%
Hunter
Magnetized Blasting Cap Launcher 200% -> 800%
Mage
Cord of Infinity 25% mana -> 40%
Koralon's Burning Touch 250% -> 350%
Marquee Bindings of the Sun King 200% -> 300%
Monk
Leggings of the Black Flame 2 charges -> 1 charge
Petrichor Lagniappe 3 sec -> 2 sec
Paladin
Breastplate of the Golden Val'kyr 4 sec -> 3 sec
Uther's Guard 40% -> 50%
Tyr's Hand of Faith 40% -> 60%
Priest
Estel, Dejahna's Inspiration 1% -> 2%
Al'maiesh, the Cord of Hope 15% -> 10%
Xalan the Feared's Clench 2 sec -> 3 sec
Rogue
Thraxi's Tricksy Treads 50% -> 20%
Greenskin's Waterlogged Wristcuffs 300% -> 400%
Zoldyck Family Training Shackles 25% -> 30%
Insignia of Ravenholdt 15% -> 30% (Assassination)
Shaman
Akainu's Absolute Justice 60% -> 30%
Focuser of Jonat, the Elder 20% -> 15%
Warlock
none
Warrior
Destiny Driver 25% -> 15%
Naj'entus's Vertebrae 2 additional hits -> 1 additional hit
Neutral
Cinidaria, the Symbiote 50% -> 30%
Never forget Tricksy Treads.