Mort Divine
Shrine Maiden of the In-Crowd
Well than you'd have to consider Lykathea Aflame a gimmick as well.
Actually no - there is a big difference between having a gimmick and being unique.
Lykathea Aflame's inclusion of the middle eastern influences are not flaunted around in any "OMG WE ARE TEH COOL EGYPTIAN DEATH METAULZ" kind of way and it feels honest, combined with their spiritual lyrics and generally uplifting sound.
Nile do the same shit time and time again, not going for uniqueness outside of their gimmick.
Lykathea Aflame don't rely on a gimmick to stand out, simply pure quality that happens to be unique.