after you beat the elite 4 for the first time you go to golden
rod ity and go to the dock were you sail and you will see prof. oak and and he will give you the NATIONAL DEX!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
yes you do
in stark mountain after natinal dex is obtained
461
get 60 in your pokedex and go to oaks lab
461
wifi/ internet connection
heck no! you need natinal dex!
Get the natinal dex
u must natinal dex toget there then head to resort area.
yes unless you trade with a friend.
u could trade it from someone else or get it from an event
it is in entra Forrest and inside there lives a rotom after getting the natinal dex in the t.v