You need your space when moving, and tend to make it through forcibly shoving others away.
Benefit(s): When taking a Step action and an ally or enemy is occupying the square you wish to be in you can forcibly move them as part of your Step. This cannot push them into a harmful position (such as into lava, into a pit, etc. however them being pushed into a safe location that is suddenly revealed to be trapped is permissible).