you dont
fall city is unt in Pokemon ranger guardian signs
latias is in Pokemon ranger signs.
do quests and catch legendary Pokemon to get signs
you can not
Pokémon Ranger: Guardian Signs (Part One) and Pokémon Ranger: Guardian Signs (Part Two) or SS022 and SS023
glameow
300
sentret
blastoise
Abomasnow
Togepi
Crobat