Coliseum Gear

So I saw a dragoon around 45+ running around with "Coliseum Galerus" on Ultros (non-legacy) and I thought it looked pretty awesome for a more barbaric look. My question is:

Does anyone know where to obtain it?

I initially thought it was from PvP because of "Coliseum", but I hear that's not in, yet. I looked around a bit and saw that it dropped from some "Wanted" quests in v1.0 or something similar, but I'm having trouble locating the v2.0 equivalent.

If anyone has something to add, please do tell. Thank you!

I saw a piece drop in Darkhold

Wonderful, I'll keep an eye out for it! Thank you so much.