Toppling Dance Feat 13
Source Pathfinder Advanced Player's Guide
Prerequisites Dance Underfoot
While sharing a creature's space using Dance Underfoot, your weapons and unarmed attacks gain the trip trait, but only against the creature whose space you share. You can be in the same space as a Large or larger prone creature, even if it's not your ally.
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.
HalflingA creature with this trait is a member of the halfling ancestry. These small people are friendly wanderers considered to be lucky. An ability with this trait can be used or selected only by halflings. A weapon with this trait is created and used by halflings.