Agility is balance, grace, speed, and overall physical coordination.
Your Agility rank applies to:
- Dodge defense, for avoiding ranged attacks and other hazards.
- Initiative bonus, for acting first in combat.
- Acrobatics and Stealth skill checks.
- Agility checks for feats of coordination, gross movement, and quickness when a specific skill doesn’t apply.
Debilitated Strength, Agility, or Dexterity means the hero collapses: defenseless, immobilized, and stunned (although still conscious and aware).
A creature with no Agility is unable to move its body under its own power and has no Dodge 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