The Giant Stone Warrior is part of the Overlord's Stone Army. Sporting four arms and having a far greater size than any other Stone Warrior, it is one of the strongest soldiers of the Island of Darkness. Buried when the First Spinjitzu Master split Ninjago in two, it was unearthed centuries later and put on display in the Ninjago Museum of History. There, it was brought to life by the Great Devourer's venom and went on a rampage in the museum, before being defeated by Lloyd, who led it to fall into a massive sinkhole.
After the Overlord was defeated, most of the Stone Army was decimated, with at the Giant Stone Warrior being captured and locked away in Kryptarium Prison. The Stone Warrior would battle the Ninja during their ordeal with the Anacondrai Cultists, whose actions had led them to the prison, although it was unable to defeat them.