Some TMNT stuff really isn't for little kids.

Traag Archie

Krang and two stone warriors

The Stone Warriors, are an army of sentient humanoids, from Dimension X, whose bodies, as their name implies, are composed of stone. They are under the command of Krang and therefore enemies of the Teenage Mutant Ninja Turtles.

The stone warriors were featured in the Archie comics in the issues that adapted the episodes Hot Rodding Teenagers from Dimension X, Shredder & Splintered, and Return of the Shredder with Granitor being replaced with a clone of Traag.