Granblue Fantasy – Altair, Arulumaya Christmas, Lily, Drang, Pholia vs Prometheus − アフィリエイト動画まとめ
It was a rather fun ride and I was so close at 3% from defeating her, but had to use an elixir at the end. A shame, but I'm sure with some small change to the grid it'll be easier (mainly a second Europa Harp and maybe uncap a drang ball to use as MH).