Here is a list that I saved for myself, that includes patch notes + what people tested and posted on these forums in various threads:

Aetherial Ascension
Agility
Akaviri Dragonguard
Amber Plasm
Ancient Dragonguard
Archer's Mind
Armor of the Seducer
Armor of the Trainee
Assassin's Guile
Bahraha's Curse (aka Bahara) (4-pieces)
Bastion of the Heartland
Battlefield Acrobat
Beekeeper’s Gear
Black Rose
Blessing of the Potentates
Blooddrinker
Buffer of the Swift
Champion of the Hist
Crafty Alfiq
Crushing Wall (Maelstrom)
Dagon's Dominion
Darkstride
Deadly Strike
Draugr Hulk
Duneripper's Scales
Eagle Eye
Elf Bane
Endurance
Eyes of Mara
Flanking Strategist
Footman's Fortune
Fortified Brass
Frostbite
Gaze of Sithis
Grace of the Ancients
Hawk's Eve
Healer's Habit
Heartland Conqueror
Hunding’s Rage
Impregnable Armor
Innate Axiom
Jailbreaker
Jorvuld's Guidance
Kvatch Gladiator
Law of Julianos
Leki's Focus
Leviathan
Light Speaker
Malacath
Mark of the Pariah
Marksman's Crest
Medusa
Mighty Chudan
Mother’s Sorrow
Netch's Touch
New Moon Acolyte
Night Mother's Embrace
Night Terror (3-piece)
Order of Diagna
Orgnum's Scales
Perfected Crushing Wall
Permafrost
Plague Doctor
Ranger's Gait
Rattlecage
Red Eagle's Fury
Ring of the Wild Hunt
Robes of Alteration Mastery
Robes of Destruction Mastery
Salvation
Sergeant's Mail
Shacklebreaker
Shalk Exoskeleton
Shapeshifter's Chain
Shield Breaker
Shield of the Valiant (5-piece)
Silks of the Sun
Slimecraw
Spider Cultist Cowl
Spinner’s Garments
Spriggan’s Thorns
Strength of the Automaton
Swamp Raider
Sword Dancer
Sword-Singer
Syvarra's Scales (4-pieces)
Titanborn
Toothrow
Torc of Tonal Constancy
Torug's Pact
Treasure Hunter
Trial by Fire
Twice-Born Star
Twilight's Embrace
Vampire Cloak
Vesture of Darloc Brae (4-piece)
War Maiden
Warrior-Poet
Way of Air (4-piece)
Way of the Arena
Willow's Path
Willpower
Witch-Knight's Defiance
Wrath of the Imperium
Ysgramor's Birthright

That might be the best list I've ever seen in this forum.

gariondavey wrote: »

Malacath, heartland conqueror, new moon acolyte, wild hunt, torc all work as well

These are on the list I posted.

However, Shapeshifter's Chain appeared to be not working after trying it out, despite being present in official patch notes whitelist. Neither cost reduction, nor resource increase.