Related Stat: Agility
Related Powers: Density Control

Your character may become larger or smaller at will. Clothes and objects won't change unless made of unstable molecules. The character may apply any amount of intensity up to his or her maximum when using this Power.

If the character grows, he or she automatically gains 1 point of Strength (and thus Defense) per intensity point of growth, bt this large size slows down the character, lowering Agility in the same proportion. Your character gains 2 feet in height per intensity point used. At 5 intensity or greater, the character can cross to firing distance in a few seconds.

If a character shrinks, your character gains Agility at a 1 point per point of intensity, but loses Strength and Defense. If a character drops to 0 Strength, he or she is too small to be seen or targeted by anyone of full size. On the down side, the character cannot cross distances at 0 Strength. The character drops 6 inches in height per point of intensity used, all the way down to a millimeter or two in height. Of course, trivialities such as spiders and light breezes become major challenges at this height.

No Stat can drop below 0, however. Once the character is at 0 Agility, he or she can still gain Strength to the maximum of his or her intensity. Once at 0 Strength, the character can still gain Agility to the maximum intensity. On earth, no character can grow more than intensity 20, and growth-assisted Strength and Agility max out at 20 as well.

As an example, a character with an Agility of 6 and a Strength of 10 takes Size Alteration 10. If she reduces her Strength to 0, she gets an Agility of 16, her maximum. If she reduces her Agility to 0, she gets a Strength of at least 16, and can go to 20.

Limit--Growth Only: Your character can not become smaller than his or her normal size, nor raise Agility through this Power.
Limit--Shrinking Only: Your character can not become larger than his or her normal size, nor raise Strength through this Power.
Limit--Others Only: Your character can affect only other people or objects, not his or her own body. See Imbue Size Alteration below.
Limit--Permanent: Your character is stuck at either overgrown or diminutive size and cannot regain normal size. Obviously, 12-foot and 6-inch characters don't fool many people with secret identities.
Stunt--Crossing the Pym Barrier: Characters with intensity 12+ Size Alteration can cross the "Pym Barrier" and enter the Microverse, a subatomic universe entered by shrinking. Further reductions aren't possible once in the Microverse.
Stunt--Imbue Size Alteration: Your character may change the size of other living beings. If the target is unwilling, the character must possess an intensity of at least 8 to succeed in changing the victim's size.
Stunt--Power Growth: Once shrunk, the character can suddenly grow to perform a surprise attack at +8 intensity. This only works if the character successfully surprises the victim.