Can't Save more than one value?

You need to put them in a table in order to save multiple values.

local DataStore = game:GetService("DataStoreService")
local Ds1 = DataStore:GetDataStore("DS")

game.Players.PlayerAdded:connect(function(player)
    local stats = Instance.new("IntValue",player)
    stats.Name = "leaderstat"

    local data = Ds1:GetAsync(player.UserId) --// Get the data.
    local gold = Instance.new("IntValue",stats)
    gold.Name = "Gold"
    gold.Value = data[1] or 100 --// And then just set the gold value to the first item in the table(or 100, if it doesn't exist).
end)

game.Players.PlayerRemoving:connect(function(player)
    print("Saving Data")
    Ds1:SetAsync(player.UserId, {
		player.leaderstat.Gold.Value, --// First position,
		someothervalue.Value, --// Second position,
		yetanothervalue.Value, --// Third, & onward.
	})
    print(player.Name.."'s Data Saved")
end)

Hope this helped.