Hey,
I just received the "King Vulture's Sling" token item. It's a rare drop from a boss, seeing as it is No Trade/No Auction. Rare drops from bosses are supposed to be a bit stronger? or have a special appearance, right?
However, I don't find this item unique at all. It's just like general loot, adds a few basic stats(some accuracy, and dodge, nothing else!), & it has no special appearance either.
I really think you should add something else to this item.