Kaiju's Footfalls Feat 13
Source Pathfinder Lost Omens Tian Xia Character Guide
Prerequisites mightyfall kobold heritage
You channel the might and mass of a kaiju. You can cast Enlarge as an innate primal spell twice per day, targeting yourself. The first time each turn you High Jump, Leap, or Long Jump while affected by this spell, creatures of your size or smaller adjacent to where you land must attempt a reflex save against your class DC or spell DC, whichever is higher.
Failure The creature is knocked Prone.
Critical Failure The creature is knocked prone and takes 2d6 bludgeoning damage.
At 17th level, you can choose to heighten this innate enlarge spell to 4th rank.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
KoboldA creature with this trait is a member of the kobold ancestry. Kobolds are reptilian humanoids who are usually Small and typically have darkvision.