Corpulence

At 3rd level, a bloatmage becomes so massive that her rolls of fatty, blood-laden flesh grant her a +1 natural armor bonus. At 7th level, this bonus increases to +2 but reduces her speed by 10 feet. This penalty stacks with the penalty from the Bloatmage Initiate feat. This reduction in speed can never reduce the bloatmage’s speed below 5 feet, nor does it affect magical flying effects.