Cermittrainer

I'd like to keep playing my impale build. It consistantly produces

Hello, my demon hunter is nearing gr119 but my current traveler pledge isn't ancient, primal, or even rolled right. Since I have over 200 of each type of material I have 2 questions. 1. How many times should I roll 1 traveler pledge, I was thinking 5 to 10 times and then scrap. 2. I have 17 traveler pledge and since I have so many Matt's use on each one?