User blog comment:Lyndongwapo/Mirana Nightshade, the Moon Purifier from DOTA/@comment-6292556-20150404080000

To upload photo to use in your blog, scroll to the top, click 'Photo' (It is below the 'Help Desk') and you'll see 'Add a photo'. There, you can upload a picture to use.

If you mean your avatar. Go to your profile and hover on the blank space of your picture, the 'Edit avatar' should appear.

I also think this champion is supposed to be Mirana Nightshade and not Luna Moonfang?