You are given a Legendary Pokemon/ Rare Pokemon/Pokemon the knows a very strong move That may Unlock special events in the game. eg Celebii takes you back in time 2 c y ur rival hates team rocket so much
either by cheating or a wifi event (but wifi event expired)
Wifi
You get Rotom through a WiFi event, though i don't know when. Proof that it is a WiFi event is that there is a Japanese picture of the WiFi card with Rotom in the corner of the card.
You get it by a wifi event.
It is a WiFi event.
you get it from an event over wifi (this event has ended)
It is a wifi event gift
you cant you have to do a event at a store or wifi give aways
the nentendo event came out you can do it now but you need nentendo wifi
the tenth aniversary mew is a wifi event
go to a wifi event.
Nintendo wifi event.