my friend told me you have to get the national pokedex and then go to canalave dock and then ask for a ride. Then ask to go to (full\new) moon island. Then you can catch creselia!!
You will have to trade it from Diamond, Pearl or Platinum to get one.
Yes creselia is is in Pokemon Platinum.
after you beat the elite four and you catch creselia and mesprit
I am not sure how to catch darkrai or creselia but to obtain Palkia or Dialga you have to go to Spear Pillar in mount Cornet.
you can find creselia on moonlight island but i dont know about darkrai.
NO
Probably creselia
Alamos Town does not appear in the Pokemon Diamond version of this game. It is in the movie, but not on this game.
it is legendary so u can only find it once and if u see it and click on the Pokemon it rns away u need a special poktech app to tell where it is.
Repels make WEAK not strong Pokemon not appear
dialga,giratina,uxie,azelf,mesrit,creselia,heatron,regigigas(reqiures the three regi's), in platinum it includes all of them but with extras palkia, zapdos,moltres,articuno and arceus
below 50%