As far as I can tell this happens when he steals healing buff from tank. Once he reaches 100% health further healing gives him stackable shield. That does not look normal and certainly is not described anywhere in his skills.
#S4 Grave of Curse boss gets shield
molten magnet
misty helm
Dear traveler,
Thank you for reaching out to us. We have forwarded your concern to our team for review. Please be patient as we investigate the matter further. We'll update you as soon as we have a response.
misty helm
Dear Traveler,
Could you please provide a video showing the moment when the Boss triggers the "Punishment of Blood" skill? This will help us investigate the issue more effectively.
Thank you for your cooperation.
molten magnet
misty helm
Dear Traveler,
Thank you for bringing this issue to our attention. Our team is currently investigating the matter. To assist us in resolving this issue, could you please provide details about the heroes' equipment at the time this problem occurred?
At the same time please provide the log files
(How to get the log files on PC: Find the directory where the game is installed in the system files, click on it and there will be a logs folder)
[Game installation full path]:
(e.g.: Windows(C)/User/Admin/download)
(How to get the log files on Android version: the log file under /Android/data/com.sgra.dragon/files/.)
Please find the log files ending with ""log"". If you have not enabled the display of file extensions, you may not see the file names ending with ""log"". Example file names include: dragon_log_date_19.log. Please pack all the log files and send the files to us via Discord private message. Please mention your character nickname/character ID.
After collecting the information you provided, I will immediately reflect the relevant team for you to confirm, thank you.
molten magnet
Dear Traveler,
Thank you for bringing this issue to our attention. Our team is...
There you have it. New video (I can recreate the effect freely) showing gear (though it is only needed to make sure Feenja and Journ has enough skill haste to use skills fast enough) and the bug, plus log file from this combat (at the very end of file as I closed game immediately after fight). https://youtu.be/eX3lgJw7rNY
misty helm
Dear Traveler, thank you for your patience. I'll forward your case to our dev team and they will do their best to work on your case. I'll get back to you as soon as the result comes back.