So first off, hello. I have only started playing this game recently.
Anyway, using the debug command "set damage 999999" and hitting an enemy with any weapon gave me an enormous amount of juice, in the 6 digits to be more precise. So based on this observation, the strongest weapon in the game (The Dragin Slayer) does not have a special property (Which was something mentioned on the wiki the first time I came by) that allows it to drop more juice, but in stead it is due to the weapon's sheer power that makes enemies drop more juice after you kill them, simply increasing the power of the player character allows you to gain more juice off enemies, even if that seems minuscule without the commands.
Now, I wanna ask this question: Have you discovered something interesting with the debug commands?