Elina knows it exists but it's pretty rare. She may have considered to try to find one to undo the side effects of the Exarch spell when he summoned her in the first (it basically altered a bit her body) but she was unable to find the potion in Norvrandt.
@sizeablecat.bsky.social#wolqotd
How does your WoL/OC view fantasia? Something they've never heard of, maybe a mythical potion, or even just something that you can buy on the black market?
Have they or a friend ever used it? How did they respond to the new look?
Side question, how many do you have in your inventory?