How do you find a Scuicune in Pokemon FireRed?
Your starter Pokemon must be Charmander. Defeat the Elite Four and
catch every Unown (A,B,C Etc.)Oh, there is also a ! and ? Unown. I
don't know if they count, but get them anyway. Then search the
grasslands in Kanto and it is ideal you use a Master Ball as
Suicune flees. Also, check the water; I found Raikou there. And by
the way, if you want to find Raikou, your starter Pokemon should be
Squirtle and Bulbasuar for Entei.