Exotic Metal Guitarists/bands

Nile use the Egpytian scale, CDFGA# The intervals are T 2Major 4th 5th 6+. The raised 1 1/2 skip gives it a really exotic sound, and the augmented 6th makes it more 'far out' in my opinion.
 
not 'the' pentatonic, but a penta tonic scale. Yeah. The pentatonic scale is an oriental scale, anyways..