Mror Stalwart is a heroic tier feat.
Prerequisites: Dwarf, Mror Holds background
Benefits: +1 feat bonus to attack rolls using axes and hammers before you move.
Mror Stalwart is generally considered a poor choice of feat because it being a feat bonus conflicts with either Axe Expertise or Bludgeon Expertise, who both grant their bonus constantly instead of conditionally. Additionally, the expertise feats bonus increases as the character gains levels while Mror Stalwart's bonus stays static.