You are uniquely adapted to fighting particularly
 powerful foes.  When facing a foe of a greater Power Level,
 or a foe who has an attack that is a greater rank than your
 Toughness, you gain a +2 circumstance bonus to your Toughness. 
 If you have 2 ranks this bonus is increased to +5.

 This circumstance bonus is not affected by Power Level.

 This advantage is particularly useful for villains who can be
 affected by characters of many different power levels, but are
 always very tough.

 When you make a sacrifice attack, you take a penalty of up
 to -2 on your active defenses (Dodge and Perry) and add the
 same number (up to +2) to the effect bonus of your attack.
 A second rank allows for adjustments up to -5 and +5.  This 
 cannot be used with a range of Perception.

 Use Intellect instead of Agility for initiative checks

 May reduce active defenses 2 ranks to increase Toughness bonus
 by 2 ranks.

 +5 bonus against Fear and related effects.

 You can temporarily increase your mass, gaining Strength
 and Stamina while becoming heavier.  Density Increase
 modifiers are restricted by power level limits.

 Each rank of Density Increase adds 1 rank to your Strength
 and Stamina (constructs add 1 rank to Strength and Toughness
 if they lack Stamina) and adds 1 rank to your mass. Every
 two ranks (rounded down) decreases your active defenses
 (Dodge and Parry) by one. Increases to your Strength and
 Stamina also improve related traits like your Strength
 Damage, Fortitude, and Toughness. There is no modification 
 to size, speed, or skills.