You yearn to explore beyond
Bretheda and
Liavara and seek out challenging and physically demanding environments. Such places often contain dangerous flora and fauna, or perhaps very inhospitable native humanoids. To deal with such threats, you've genetically modified your body to make it hardy and resilient, creating your own protective shell of mineral deposits. This shell counts as medium armor in the composite armor group. It grants a +2 item bonus to AC, has a Dex cap of +2, a check penalty of –2, a Strength threshold of +2, and has the
comfort and
exposed traits. This item bonus increases to +3 at 5th level. You're trained in your shell. You can wear a
flight suit, but you can't wear other armor. You can etch
armor runes onto your shell, but you can't install armor upgrades.