You can attack, and then quickly retreat into your shell.
Benefit: You may retract into your protective shell as a move action rather than a standard action. For example, now you can make a standard action and then retract into shell. Leaving your shell is still a standard action.
Section 15: Copyright Notice
Remarkable Races: Compendium of Unusual PC Races, Pathway to Adventure Edition. Copyright 2009, Alluria Publishing; Author: J. Matthew Kubisz