There is no battlable character named Katrina in Pokemon Diamond.
However, the Gym Leader Fantina can be battled in her gym after delivering the Charm to the grandmother in Celestic Town
I don't think that there is such thing but maybe with an action replay.
The Battle Tower
The Pokemon you see do not go in your pokedex.
The super rod is used in Pokemon Diamond to catch wild Pokemon. A fisherman gives you this item at the Battle Zone.
No.
you can not send from Pokemon battle reveloution to diamond but you can send from diamond to Pokemon battle reveloution
no but you can get Pokemon from diamond to battle rev.
I don't think that there is such thing but maybe with an action replay.
There is no Battle Frontier in Pokemon Diamond and Pearl. Only the Battle Tower.
No, you can only copy them to Pokemon Diamond, not Pokemon Battle Revolution. But, if you want to, then send them from Diamond to Battle Revolution!
No.
You cannot battle Professor Rowan in Pokemon Diamond.
Do whatever you want!
You have to battle other Pokemon with it.
yes
No
no