I like all of these, I couldn't pick which one I liked more! Plus the mechanics if she was an actual fight!
if you want to make your own mechanics: https://en.shindanmaker.com/1138349
and subtitle generator: https://croagunk.github.io/FFXIV-Boss-Subtitle-Generator/
Battle Mechanics
Phase 1: starts as a Dark Knight, basic attacks and summons pools of Darkness which slow down and damage if stepped in
Phase 2: switches to dancer and throws her Chakrams which make donut Aoe. after two of those she begans improvisation which causes Forced March, have to position to avoid the AOEs. During this phase she will also dash to random characters to do another Donut Aoe, which increases in size outward, be careful to not overlap these with regular AOE
Phase 3: she summons Ruby Carbuncles which must be avoided, these run to points in the arena and cause explosions, these Twice Come Ruin
at half HP she begans laughing, triggering a cutscene where she throws away her chakrams and Pulls out her axe. She then gets Fell Cleave Tankbusters which must be shared between tanks. at 25% she will then use Holmgang, becoming invulnerable to attacks as she charges her Beast Gauge. This ends when it's full, and she uses Inner Release to perform a cinematic series of powerful giant axe swings, tearing open reality and pulling the arena into the void. a tank LB3 is required to prevent a wipe from the darkness crushing in.
(updated to include details for the mechanics)

