Tier 3 has the same problem. It’s just an odd yellow/purple rectangle that doesn’t move but the fire animation sorta blocks it. I’m guessing it’s supposed to be a pattern on the robe but it just looks odd given it has no animation and the rest of the model (for both Tier 2 and 3) do. I almost wanna say if you just take away the rectangle and make the robes purple/black and a bit of red mixed in… it’d probably look better. Just my 2 cents,
Edit: The shoulders (red spikes) don’t move as well when you are going left and right but they have animation when you are facing south.