Summon Artisan's Gathering Goblin (Harvesting Buff)

Info

 * One obtains this from the quest Tree of Growf if one is willing to "free" their gathering goblin during the quest.
 * The quest has warnings telling you you will "lose" the goblin, but doesn't specify how the skill will change.
 * The skill remains in your Knowledge book (press K to open it) but is changed.

In game screenshot: