There is a Legacy version
here.
Hammer Quake [three-actions] Feat 14Archetype Flourish Source Player Core 2 pg. 207Archetype MaulerPrerequisites Mauler DedicationRequirements You’re wielding a non-
finesse melee weapon in two hands.
You smash the ground with your weapon, knocking nearby creatures to the ground. Choose a square within your reach, including your own space. If there’s an enemy in the chosen square, you can
Strike that enemy with your two-handed weapon. Regardless of whether you attempted a Strike, you then attempt to
Trip every enemy in the chosen square plus each square adjacent to that square, ignoring Trip’s requirement that you have a hand free.
Hammer Quake counts as three attacks toward your
multiple attack penalty, but the penalty doesn’t increase until after you’ve made the Strike, if any, and all the Trip attempts.
Traits
Archetype: This feat belongs to an archetype.
Flourish: Actions with the flourish trait are special techniques that require too much exertion for you to perform frequently. You can use only one action with the flourish trait per round.