PLEASE BE MINDFUL that for this macro to purchase the right piece, the
重塑的艾泽里特胸甲 that costs 5
泰坦残血精华 has to be
on the third slot of the vendor. People who have not purchased certain items such as Rank 4 of the Mythic+ Azerite Essences might have the
重塑的艾泽里特胸甲 on slots 4 or 5 or 6 (depending on how many specializations you have available). Make sure to check the vendor and change the number on the "BuyMerchantItem" according to what slot the chest item is in.