Personally, I like the idea of Fantasia existing ICly with how much magic there is in the world. That being said, to keep it novel the materials to make it would be epic questline worthy of getting. Likewise some sort of magical experiment can go wrong and change you, (You'd still use a fantasia OoCly of course). (Example for this would be Ultros). but it should be treated with the reverence it deserves. As for using it as a regrowth potion, if it can change your physical composition to anything you want, then sure, why not? But personally, here would be the kicker for me. Its as you remember yourself, not necessarily how you were. And it changes everything. So if you are incredibly muscular, but don't think so about yourself, then when you drink the potion it would cause all of your muscle to change, not just regrow the arm.
Also for how much reverence the potion deserves. I personally doubt even the Alchemist Guildmaster can make one easily, even given the materials.
Also for how much reverence the potion deserves. I personally doubt even the Alchemist Guildmaster can make one easily, even given the materials.
If you always do what you've always done, you'll only know what you've always known. And that's boring.
