I think the old saying
"Absolute power corrupts absolutely." fits in well with the Drowzee scenario. Thanks to Team Rocket's technology, it was able to amplify it's psychic attacks tenfold, thus granting it the ability to hypnotise and control a seemingly endless slew of zombified minions.
It's only understanable that once Drowzee got a taste of that power, it would want to keep hold it, regardless of the consequences. For all we know, that Drowzee could have been a pretty respectable creature before Butch & Cassidy's interference. Maybe being in human company can, under the right circumstances, change a pokémon for the worse.
MechaBulba said:
Yes a Pokemon can be Evil if it wants 2 be!
Think about all the pokemon that like and enjoy scaring people and killing stuff in the wild.
Pokémon kill in the wild so they can
survive. And the last time I checked, basic survival instincts, gruesome be damned, weren't considered to be traits tarred by the same brush as malicious intent.
As for pokémon that enjoy scaring people? That's just them being mischievous. They don't intend to hurt or cause any long term harm, they're just getting a few kicks out of it and generally being playful.
A wild Absol would be evil since it likes disaster.
No...just no. Did you even
read it's pokédex description?
Mewtwo was evil by choice and so was Charzard and the squirtle squad.
Mewtwo wasn't evil, he was just under the impression that humans and pokémon trained by them were a threat, due to past experiences with Team Rocket. If anything, he was just confused, and thought what he was doing was beneficial for the world.
The Squirtle Squad wasn't evil either, they were just rebelious due to previous trainers treating them badly.
And Charizard was just a jerk.