>>717750453 (OP)
No.
All Pokemon naturally have the ability to shrink. They do this when scared or injured in order to protect themselves and heal. Pokeballs simply exploit this instinct by locking them tight in a comfortable environment. They don't do anything actually special.
The first Pokeball was actually a professor's glasses case. He accidentally caught his pet Primape when a lab experiment made a loud sound and scared it.
Satan most likely does not shrink as a defense mechanism.
>>717751280
>Is there an explanation? It has to be like the most expensive/difficult to create item in the entire poke world
The effectiveness of a Pokeball depends on what materials it's made of, with some doing a better job of pacifying shrunken Pokemon than others (and some having different effects on specific Pokemon, like the Heavy Ball).
Older pokeballs were made of apricots and tumblestone, while modern ones are made of different modern alloys and complex elements.
The Master Ball specifically is made of an unspecified composition of nickel, rhodium, iridium, copper, lutetium, rhenium, dubnium, darmstadtium, carbon/boron, arsenic/germanium, selenium/bromine, and two other ambiguous f-block elements. This is apparently the perfect combination to guarantee capture. It took years for them to figure out this combination, and after Giovanni fucked off after Red beat him, Silph Co lost the formula.