@FUNKNONYMOUS Good on you for sharing this method. Short of using a bot, this is really what works best. Mostly this info is guarded in the various discords, but it works for those especially shitty websites.
Part 2.
I'll go back to my 2nd tab and refresh which will have all my information from the first random item which I had removed and Metallic Knight king will now be there instead. I'll Use fills for credit card info and press checkout.
Part 1.
Two tabs will be open.
I will have 1 tab with a random item in cart and I will go through the process up to the shipping method.
I will then go back to my first tab and remove those items from my cart and add the night king once the Metallic Knight king is in my cart.