Champions Chest
From MHWiki
A Champion's Chest is a prize that can be won at the end of a Tournament by the Top 3 Hunting Parties. This item is placed in the Misc. tab of the inventory. There is nothing known about the contents or use of Tournament Chests at this time.
Description
These chests are given as prizes to the top 3 hunting parties each tournament. What's inside is always a mystery... Good luck!