Nocwenese Orcs

The original set and therefore the most widely varied, Orcs originating from Nocwen are often difficult to pick out from the rest, because it's nearly impossible to narrow any one part down.
Tusk formation is the widest range, from two inches to six on average, (5-15 cm), skin colors have the widest range, from pale gray blue to murky brown-green (and pale green-blue and the very brownest of brown you've ever seen and so on and eye colors in the widest range from black to light yellow-amber and red, usually with gold or brown in there.
After that, we start getting into heights and builds, and that one you can actually spot for primary, once you get out of the middle of everything. The mountain-dwellers stayed a little shorter and stockier, while the plainswalkers got taller. This tends to be reflected in evolutionary patterns as they spread out, probably one of the most natural species that did this.