Infiltration Automaton Feat 5
Source Pathfinder Impossible Magic
You have quiet, well-oiled joints, and you move around as silently as a shadow, though you sometimes use a magical boost. You gain a +2 circumstance bonus to Stealth checks against hearing-based Perception checks. You can cast Silence once per day on yourself as a 2nd-rank arcane innate spell.
Enhancement You can cast silence twice per day on yourself, and you can choose whether to cast it as a 2nd- or 4th-rank spell.
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.
AutomatonA creature with this trait is a member of the automaton ancestry.