yes
By not hacking them
if you have Pokemon pearl or diamond you can connect 'em up and send legendarys from your ds to Pokemon battle revolution. :)
Well first you need a router which allows you to play online and such. (There should be a wifi area in the game if that's what your asking.)
You need a wifi router or a Nintendo wifi usb
If your doing a random wifi battle with someone you dont know, then no. If your doing a friend battle, then yes, go under the rules and change them according to how you want them ;)
There's a certain pokémon that isn't allowed. REMOVE IT!
transfer them from your Nintendo ds Pokemon games by connecting the two systems through wifi.
they either caught it on a Pokemon ds game / hacked it and copied it onto the Pokemon battle revolution and used it on wifi. its possible
Pokemon that don't have max EVs or IVs. If you don't hack, then you can use any Pokemon you have.
Yes, but you obviously need Wi-Fi connection. The Pokemon company also put a blocker on it so your Pokemon have to be totally legit (this means obtained by non cheats)
yes you can but it would be very unfair on people who trained their own Pokemon's their self's
Not necessarily. Only if you want to battle people online.