This is the very first dungeon in your adventure, so it will be a bit easier than the other ones.
Navigate through a Jungle themed Dungeon with a team to defeat Jungle themed mobs and finally, the Lady of the Forest to earn rewards such as Crate Keys, Custom Enchants, Mob Coins etc.
Purchasing this item grants you a Jungle Dungeon Key, which can be used at the Dungeons NPC at spawn. Better to have a team to successfully complete a Dungeon!