catch an eevee from trophy garden and level it up in eterna forest near the mossy rock and it will evolve into a leafeon
two trainers on the way to Pokemon mansion from pastoria have them.
Pokemon Number 169 in Platinum is Leafeon
No.
Gardenia has one.
It is Leafeon.
you can get 1 pretty easily by evolving an eevee by the mossy rock in eterna forest
Get an Eevee and level it up in the Eterna Forest.
to get a leafeon in Pokemon platinum, you need to have an eevee and then at any lvl you have to use a leaf stone!
In a battle at the top of Route 212
At the top of route 212 the ranger has 1
Personally, I like Togekiss, Snorlax, Blissey, Leafeon and others
By trading across from either Pearl, Diamond or Platinum version