The Splinter Fist, also known as the Stone Fist Clan, are a group of ogres found in Vul'Gol Ogre Mound. The leader of this group is Zzarc'Vul, whom can be found inside the cave.
Viktori Prism'Antras wants the monocle of Zzarc'Vul to use for his research and is sending Alliance adventurers to defeat the ogre.
In the RPG
This section contains information from the Warcraft RPG which is considered non-canon.
Duskwood have became one of the most dangerous areas held by the Alliance, in part for the Splinter Fist ogres. They live in the southern part of the region and raid the remaining Alliance villages in the area, and sometimes attack humans stealing their belongings. They are like any ogre, who delight in attacking the Alliance villages. Some think that the deterioration of Duskwoods is caused by the Splinter Fist ogres, but they aren't too dificult to take down.