It's just brighter in my opinion on my hunter they look almost the same just revenant is more black than gray...

Revenant doesn't in fact have grey. It has black, blacker and white. Revenant also has a camo-like pattern reminiscent of older military uniforms. (Pre-digital) Thunderdevil is mostly grey with a squares on squares kind of pattern. Making the armor you wear (especially on Warlock) look like it has patches on it

I never said it was grey now I'm just blocking you because you block my audio when I'm calling people