Cub hoardstalker

A Cub hoardstalker is a familiar used in Dungeoneering. It requires level five in Summoning to make, and can be sold for 2,128 coins to the Smuggler. Its Aptitude scrolls can be sold for 213 coins each.

Aptitude scroll
The hoardstalker spawns items in its BoB every once in awhile, you can take these items by right clicking your familiar and clicking take.