The Harder They Fall (Kingmaker)

You know how to make a larger creature hurt when it falls to the ground. If you successfully a foe that's larger than you, it takes 1d8[bludgeoning] damage (or 2d8[bludgeoning] damage on a critical success). If you are master in Athletics, the damage increases to 2d8[bludgeoning] damage (or 4d8[bludgeoning] damage on a critical success).