*Uses half of my health to revive the thread*
A year or so since I started playing, I've finally completed my goal of solo Vanaduke (with one revive).
Weapon - Glacius, Fang of Vog, Polaris, Blitz Needle
Armor - Full Vog Cub
Shield - Barbarous Thorn BladeShield
Trinkets - None
For 1st and 3rd phases, I used Glacius to kill the walkers, then Blitz charges on Vana. Treating Vana like a very big Trojan worked.
For the mask phases, I didn't go in too much after the first water (swinging FoV). I played it safe, throwing water and then with Polaris from outside. It took me a while, but no HP lost until 5th phase, where I tried to ambush the guards like Shiwen did in his first video but failed (positioning is not right or it turned faster than my latency).
I gave up the idea of using Glacius + FoV to kill them - I would be standing in the same general area for too long, Vana would charge/smack me. So instead I started running in big circles, and blitz when I could. I didn't manage to blitz very effectively... the guards were in the way, and Vana charged around a lot for me to land a lot of hits. After a while got killed by homing shadow fire.
After revive I switched to Polaris (2-shot) and kept running. Vana renewed the guards for a total of 4 times and died. Now I just need to practice more, and I will be able to solo Vanaduke without revive...
The current CE price (~7.6k cr) is very mean to new players though.
Edit: Yeah it's BTS, not BTB...