I came up with the name + the item. It was originally going to be the name of a Dark Sea volcano which I would’ve made, but I repurposed it when Vetex asked for ideas for reagents as the interchange one. This got chosen over 5 other ideas, I think, and now it’s in the game.
I thought it would be appropriate, especially with the appearance I came up with since it would be the same color as Prometheus’s fire, and since Prometheus gave magic and this makes a powerful potion that kind of resets your stats, I thought it would make somewhat sense. Besides this, though, it’s just because it sounds cool.
None of this actually matters, though, since Vetex has stated multiple times that Prometheus’s Acrimony doesn’t exist in canon.