Trampling Treads

From LegendWiki

Trampling Treads [Mount]

These tires are just made for flattening things.
Benefit: Your mount's rider, if it is your ally, can attempt to violently force its way through a square occupied by another creature. As a standard action, the rider can move your mount from one square adjacent to a particular opponent to any other unoccupied square adjacent to the same opponent without provoking an attack of opportunity. There must be sufficient unoccupied squares for the mount to fit in this new space, and its rider can make an attack action against the opponent after completing its move. If the target creature makes a successful Fortitude save (DC 10 + 1/2 the rider's level + the rider's KOM), the rider can make only a single attack, rather than an attack action.