The rarity of Ol' Chopper's Cleaver is Common. At this moment the item is available for trade.
Ol' Chopper's Cleaver is a skin for Pudge. The skin was added to the game on August 16, 2013, it was created by Jeremy Klein.
Ol' Chopper's Cleaver is currently one of the most popular skins, but it is rarely seen in the game due to its high price.