Envy

Envy was always a sickly filly, she hadn't developed as rapidly or as well as the other ponies of Altestria and so always fell behind in any sort of physical activity. As a 'defence' Envy's mental barriers manifested themselves as an actual shell like covering on her body, making her extremely tough to crack, both inside and out.

However as she grew older, and her jealously grew stronger, she found that she could also control the local weather systems. The weather varied depending on her mood; rain for sadness, snow for jealousy, violent winds for hate, sun for contentment, etc.

Now because of her gift she's found a new sense of well being, though she is still forever finding fault with herself as a throw back to her younger years.

H

er friends never tire of supporting her because they know that she's capable of wondrous things.