the blaziken I got in trade says "apparently arrived at lv. 8 after a long travel through time"
what is that long travel through time?
Depends if you have black/white or black2/white2 the 2 games ( black and white or white2 and black2) white is set in the past black is set in the future so you probably traded with the white or black person not the same version you have.
It means that the Blaziken was transferred from another Pokemon Version.