There is no key. The Gym Leader isn't there. He is in the Cave of Origin
Fly in middle of the room
south of fortree west of lilycove
The smallest room in Meteor Falls, on the 2nd Floor.
In the same room as fennel
it is found at the second floor second room of meteor falls
You evolve a ninjask with room in your party pretty simple really
It is in lilycove city
you can find him in the place that Stevens in in the room where you find TM dragon claw
No, it isn't. It only is on Pokemon diamond/pearl version.
i think you need a e-reader to skan Pokemon cards(trainer card=trainer in back room Pokemon card=Pokemon in back room, this might work in sapphire & rube aswell).
In the room that contains Vulpix and the moving Bookcase that opens to the stairs.
It's random but you have to beat the elite four first.