Extra Squishy Feat 1
Source Pathfinder Advanced Player's Guide
Prerequisites unbreakable goblin heritage
Your rubbery physique makes it easier for you to wedge yourself into tight spaces and more difficult for your enemies to dislodge you.
You become trained in Acrobatics. If you would automatically become trained in Acrobatics (from your background or class, for example), you instead become trained in a skill of your choice.
If you roll a success to Squeeze, you get a critical success instead. While you're Squeezing, you gain a +4 circumstance bonus to your Fortitude or Reflex DCs against attempts to Shove you or otherwise move you from your space.
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.
GoblinA creature with this trait can come from multiple tribes of creatures, including goblins, hobgoblins, and bugbears. Goblins tend to have darkvision. An ability with this trait can be used or chosen only by goblins. A weapon with this trait is created and used by goblins.