Innate Skill
Term
Innate Skills are technically anything apart of a creature's Essence and require no training for any creature, and therefore, creatures are considered at a Skill Tier 1, instead of being untrained, or at Skill Tier 0.
Meaning, that a creature starts off rolling one d20 as the Main Roll, and NOT at a Disadvantage Stack.
They are typically:
Attention,
Balance,
Empathy,
Endurance,
Frighten,
Influence, 
Initiative,
Inspection,- and
Sneak.
d100
Mod
ADV/DIS