Items, NPCs, quests, objects and spells of patch 1.12.1, read live from the realm itself.

Carved Stone Idol

NPC	Level	Zone	Chance
Stonesplinter Geomancer	17 - 18	Loch Modan	80.0%
Stonesplinter Digger	18 - 19	Loch Modan	80.0%
Berserk Trogg	19 - 20	Loch Modan	80.0%