Modding Help Spawn with Items

I have this code in assets/treasure/default.treasurepools

Code:

 "humanStarterTreasure" : [
    [0, {
        "fill" : [
          "beamaxe",
          "flashlight",
          [ "torch", 10],
          [ "cornseed", 3],
          [ "wheatseed", 3],
          [ "humanstarter", 1],
          [ "generatedgun", 1, { "definition" : "legendarygrenadelauncher" } ] ,
          [ "generatedgun", 1, { "definition" : "legendaryassaultrifle" } ] ,
          [ "generatedgun", 1, { "definition" : "rareplasmashotgun" } ] ,
          [ "generatedgun", 1, { "definition" : "legendaryflamethrower" } ] ,
          [ "generatedgun", 1, { "definition" : "legendarypistol" } ],
          [ "generatedgun", 1, { "definition" : "legendarymachinepistol" } ] ,
          [ "generatedgun", 1, { "definition" : "legendaryrocketlauncher" } ] ,
          [ "generatedgun", 1, { "definition" : "legendarysniperrifle" } ]
        ],
        "levelVariance" : [0, 0],
        "allowDuplication" : false
      } ]
  ],

Works however, the weapons comes with bad damage.

know how I can change this?

 

Turn levelVariance up, like 0, 7 should make it better