Route 227, or outside Stark Mountain.
In Sevault Canyon on Seven Island.
go south of blackthorn city and you'll find him at lvl 27
unfortunately, Skarmory can only be found after defeating the Elite 4 and Cynthia. but if this Task is completed he can be found outside Stark mountain
Aircuter is learned by skamory.
buy the Pokemon platinum book
The 151st Pokemon is Mew and is unobtainable in Pokemon Platinum.
no you can't find a torchic egg in Pokemon platinum
at route 227 or at stark mountain (outside)
You have to go to the Chroma Highlands to get Skarmory.
try your best to find spirtomb in Pokemon platinum
There is not a route 233 on Pokemon platinum.
You cannot find zekrom in pokemon platinum