Sup dude, you asked for a Shiny Calm Cresselia in the SQR thread, well if you are willing to abuse an ID/SID combo for me, I will complete the game and capture it for you. All on my DS. Let me know. :)
I saw it but I don't have any clue about it... Perhaps you can faint it and try again later? It respawns after you defeat the Elite Four. That way you can see if you're able to hit that spread on other pokemon or not.