User blog comment:YourPrivateNightmare/The Freljord Hype.../@comment-5254342-20130413232602/@comment-4022742-20130414110122

Thresh kind of falls under the Shadow Isle, even if there is no direct connection, being from that place basically makes you an undead. Just like being from or associated with "The Void".

Now if you want a champ that has no relation to anyone, try skarner.