So that those of us who don't speak Japanese can get a feel for what you're saying - what do the original Japanese texts mean (i.e. could you give us a better translation)?
手に入る literally translates to "put into hand", but it means "acquire" in the context of opening a chest and finding a potion. Japanese games say "potion put into hand" and English translations say "You received a potion".
全く literally means "truly" or "very" but a lot of the time people use to mean "seriously" in a sarcastic sense. Like, "seriously!?" or "jeeze!". A beginner would think "very" but somebody with experience would know they're just complaining in a way that doesn't elicit* a response.
"Brother" seems to be coming into it because Rydia is addressing Edward as "o-nii-chan". Pretty classic example of something that you couldn't translate accurately without knowing who the characters are.