I just went through and did a max damage calculation including as much attack as possible, 100% gloomy, 200% elemental weakness, and a lex, and the damage comes out to approximately 9,169,860. Let's see genetics beat that for mvping. People better fear RK's when this weapon is out.
Of course this is all assuming the formula is accurate on irowiki still, that my calculations are correct, and most of all.... that they wont nerf the weapon (which they probably will ).