Do i really have to autocorrect ya? (This is a joke, its just the thumbnail of a video)

That looks like an old variant of a game my mom used to play

Autocorrection: To brew the tonic (pink potion) you need the BI element. Not CO. thats used for brewing Elixir (Green potion) and AG is used for the antidote (Gray Potion) and CA is used for eye drops (yellow)