Some of these might not be exclusive to anything because if I remember correctly you can gift any untradable sets you get from random drops. Most of them are from old crates
Since they're untradable I don't have an easy way to look up prices. Sorry.
If you need me to post a picture of the previewed set just let me know.
Blessings of the Eternal Eclipse (Luna)
The Warcog (Clockwork)
The Burden Of The Eleven Curses (Doom)
Glacial Magnolia (Crystal Maiden)
Inscribed Umba Rider (Luna)
Scorched Fletcher (Clinkz)
Aria of the Wild Wind (Windrunner)
Inscribed Arms of the Captive Princess (Naga Siren)
Inscribed Charge of the Tundra Warden (Crystal Maiden)
Snowpack Savage (Axe)
Father of the Forest (Nature's Prophet)
Meranth Dragoon (Sven)
War-Vestments of the Magnoceri (Magnus)
Submerged Hazard (Tinker)
Covenant of the Depths (Invoker)
Secrets of the KateKhein (Winter Wyvern)
Sovereign of the Kray Legions (Sand King)
Eternal Testament (Death Prophet)
Abyssal Vortex (Enigma)
Shadowforce Gale (Luna)
The Eternal Light (Spectre)
Frostiron Sorceress (Crystal Maiden)
Rumrunner's Carronade (Brewmaster)
Inscribed Shivshell Crawler (Slark)
Forsaken Beauty (Medusa)
Nightsilver's Resolve (Luna)
Arms of the Gwimyeon Warrior (Juggernaut)
Diabolical Fiend (Shadow Fiend)
Fortified Fabricator (Tinker)
Heir of Terror (Bane)
Dirgeful Overlord (Undying)