Random Case Mechanics ServerSide

local debounce = {}

local function rand(tbl)
    local rn = Random.new()
    local sum = 0
    for i = 1, #tbl do
        sum = sum + tbl[i].Weight
    end
    local num = rn:NextNumber(0, sum)
    for i = 1, #tbl do
        if num <= tbl[i].Weight then
            return tbl[i]
        end
        num = num - tbl[i].Weight
    end
end

local tabl = {
    {Obj = "Common", Weight = 44},
    {Obj = "Uncommon", Weight = 32},
    {Obj = "Rare", Weight = 21},
    {Obj = "Epik", Weight = 10},
    {Obj = "Legendary", Weight = 2},
    {Obj = "Mythic", Weight = 0.1},
    {Obj = "The Unobtainable", Weight = 0.0001},
}

local tabl2 = {

["Common"] = {

{Obj = "Gun", Weight = 30},
{Obj = "Sword", Weight = 20},
{Obj = "Pie", Weight = 10},
{Obj = "Corn", Weight = 5},

},
["Uncommon"] = {

{Obj = "Green greene gun", Weight = 20},
{Obj = "Sock", Weight = 20},
{Obj = "Big bone", Weight = 20},
{Obj = "Hello", Weight = 20},

},
["Rare"] = {

{Obj = "Gobstopper", Weight = 10},
{Obj = "Melodic Rifle", Weight = 20},
{Obj = "Annoyingly Common Coin", Weight = 50},
{Obj = "Severed Leg", Weight = 20},

},
["Epik"] = {

{Obj = "Tom's mini cannon", Weight = 30},
{Obj = "Golden Plate", Weight = 10},
{Obj = "Killer bean", Weight = 20},
{Obj = "Gross Hankerchief", Weight = 30},

},
["Legendary"] = {

{Obj = "Bazooka", Weight = 20},
{Obj = "Thanos guantlet", Weight = 10},
{Obj = "Echoer", Weight = 30},
{Obj = "Platinum Plate", Weight = 8},

},
["Mythic"] = {

{Obj = "Reality Rifle", Weight = 10},
{Obj = "Sword Requiem", Weight = 20},
{Obj = "Headhunter", Weight = 30},

},
["The Unobtainable"] = {


{Obj = "The One and Only.", Weight = 100}

},
}

game.ReplicatedStorage.CaseEvent.OnServerInvoke = function(player)
    if not debounce[player] then
        debounce[player] = true
        coroutine.resume(coroutine.create(function()
            wait(0.1)
            debounce[player] = false
        end))
        local i = rand(tabl)
        local i2 = rand(tabl2[i.Obj])
        return {i,i2}
    end
end