Purchased the profile hoping it would work off the bat for vanilla 1.12. since no other priest profile actually worked half-way decently... Unfortunately it didn't... I was pretty frustrated. After a bit of chatting the developer hopped on Teamviewer with me and debugged it in front of me and made the profile compatible with 1.12 (tested on level 39), now it pretty much tanks through 3 mobs at a time without a problem and the FC looks very human-like. Just make sure you pack some drinks with you! This is probably the only shadow priest FC out there that works flawlessly for vanilla and that has an active developer that you can reach most times of the day on the discord
Highly recommend!