Intellect covers reasoning ability and learning. A character with a high Intellect rank tends to be knowledgeable and well-educated.
Your Intellect modifier applies to:
- Expertise, Investigation, Technology, and Treatment skill checks.
- Intellect checks to solve problems using sheer brain-power when a specific skill doesn’t apply.
- Debilitated Intellect, Awareness, or Presence
means the hero is unaware and remains so until restored to at least a –5 rank in the ability A creature with no Intellect is an automaton, lacking free will and operating entirely on simple instinct or preprogrammed instructions. Anything with no Intellect is immune to mental effects and interaction skills and has no Will defense.
Mutants & Masterminds Hero’s Handbook, Copyright 2011, Green Ronin Publishing; Author Steve Kenson. Chapter-3 Abilities, Pg 54-59
D20Hero SRD Ability Article- http://www.d20herosrd.com/3-abilities