if you see a pokeball glowing next to the trainer names on your match call in your pokenav, that means they're ready to fight again. note that they train their Pokemon to be stronger so that they can have another chance of victory.
You cannot rebattle Gym Leader in Pokemon White.
You cannot rebattle legendary pokemon. (Correction, Giratina is on Platinum ONLY)
It is not available in Pokemon Crystal. You will need to trade for it from Pokemon Red, Blue, or Yellow.
No, however, in Pokemon Platinum, it is possible to rebattle gym leaders at the Survival Area.
trade it from red,blue, or yellowMewtwo is not catchable in the wild in Pokemon Crystal.
No
Yes.
You cannot catch Mewtwo in Pokemon Crystal, but you can trade it from a Pokemon Red or Blue. Hope this helped :)
You can't find Charizard in Pokemon Crystal. You have to trade it from Pokemon Red, Blue, or Yellow.
no they are not blue is in kanto and u are ash and in crystal you are in jhoto and u are some kid not ash so yeah and blue was made like 2 years before crystal
No
Squirtle is not available in Pokemon Crystal. Squirtle can only be found in Pokemon Red, Blue, or Yellow. Squirtle can be traded to Crystal from those titles.