How can I implement an increased luck feature in my reroll chance system?

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1 
--MODULE SCRIPT
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local ReplicatedContents = ReplicatedStorage.Contents
local ReplicatedPackage = ReplicatedStorage.Package

local Enums = require(ReplicatedContents.Enums.Enums)
local Rng = require(ReplicatedContents.Rng.Rng)

local Events = ReplicatedPackage.Events
local rerollEvent = Events.RerollEvent

local playersRerollState = {}:: {[number]: boolean}

local function sortChance(chance: number): {{Name: string, Chance: number}}
	local list = {}
	
	for i, v in Rng:getRngs() do
		local cumulativeNumber  = (i >= 1 and list[i - 1]) or {Chance = 0}
		
		list[i] = {
			Name = v.Name,
			Chance = cumulativeNumber.Chance + (v.Chance * (100 + chance))
		}
	end
	
	return list
end

local function selectChoice(randomNumber: number, list: {{Name: string, Chance: number}}): string
	local choice
	
	for _, v in list do
		if randomNumber <= v.Chance then
			choice = v.Name
			break
		end
	end
	
	return choice
end

local Reroll = {}

function Reroll:reroll(userId: number, chance: number)
	local finalChoice
	local list = sortChance(chance)
	
	local randomNumber = math.random(1, list[#list].Chance)
	local rngChoice = selectChoice(randomNumber, list)
	
	if Rng:FindRngByName(rngChoice) then
		finalChoice = rngChoice
	end
	
	return finalChoice
end

return Reroll


--SCRIPT SERVER

local ServerStorage = game:GetService("ServerStorage")
local ReplicatedStorage = game:GetService("ReplicatedStorage")

local ServerContents = ServerStorage.Contents
local ReplicatedContents = ReplicatedStorage.Contents
local ReplicatedPackage = ReplicatedStorage.Package

local Reroll = require(ServerContents.Reroll.Reroll)
local Enums = require(ReplicatedContents.Enums.Enums)

local Events = ReplicatedPackage.Events
local rerollEvent = Events.RerollEvent

local function onRerollServer(player: Player, action: string)
	local rngChoices = {}
	
	if action == Enums.RerollAction.Reroll then
		table.insert(rngChoices, Reroll:reroll(player.UserId, 1000))
	end
	
	for _, choice in rngChoices do
		print(choice)
		print("____")
	end
end

rerollEvent.OnServerEvent:Connect(onRerollServer)

Thanks for your helping

2

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