Vanaduke Gold Survivor!!!! YAY!!!

So I have been after this achievement for a long time now, and I was wondering when in hell would I ever get it. I have been doing tons of runs, Vana runs included, but never lucky with any of them.
Finally today, with the Fiend stratum and FSC following, I finally hit the acheivement with 1 bar of health after the fight with vanaduke. Thank you teammates for reviving in the end of phase 5 to help me out.
P.S. - Not bragging, only expressing my impending shock in what I did. It is easy for others, but I am not nearly as good as them.

Wonder if you get gold survivor in shadow lair

well it does say tier 3, but best of luck. that is hard mode if ive ever heard of one. No deaths in shadow lair, or no deaths in UFSC. Best of luck to you Knights. Someone should attempt it.
Give me 3 shadow keys for free and I will try it. LOL. jk

"No deaths in shadow lair, or no deaths in UFSC. Best of luck to you Knights. Someone should attempt it. "
Challenge accepted.
Now to get some Shadow Keys.
Also, congratulations on your achievement. Well done.

Thank you. It is really difficult for me because I still dont even use the best of equipment for Vana. My equipment setup:
5 star peircing trinket
Divine avenger - low vs beast
Polaris
Silversix
Grey owlite shield
Vog set:
Low elemental and medium normal if im not mistaken. but something related to those 2.
I am expecting to make my crest of almire soon since i finally got myself the recipe. Should also help me even more in fiend stratum. but I figured a trick with devillites. Works with DTB and BTB. Not sure if it will work with any other sword due to lower attack speeds on others. But with those 2, I know the trick works.
Do one hit and shield right after until they throw the TV at you. Attack and shield, rinse and repeat. Sometimes a second hit may work, but look around your surroundings first to make sure. Otherwise, 1 attack is extremely safe to deal with them.
Hard mode!