if your interested i'm HevansGate in game
i can currently make
Doubler 500 x7 = 1fsp
Black Death x8 = 1fsp
Fury x5 = 1fsp
Incandescent Fury x2 = 1fsp
Dragon's Brath x2 = 1fsp
to make other pots i'm buying
Beetle Juice Potion Solution x10 for 1 - 2fsp
Mortar and Pestle x10 for 1 - 2fsp
i will be able to make a few more after lvl 501