[FOCI]

Claim the Sky
You can shrink down to the size of a bug and, with enough experience, even smaller.
You (and your clothing or suit) become much smaller than your normal size. You become 6 inches (15 cm) tall and stay that way for about a minute. During this time, you add 4 points to your Speed Pool and add +2 to your Speed Edge. While you are smaller than normal, your Speed defense rolls are eased, your movement speed is one-tenth normal, and your attacks inflict half the normal amount of damage (divide the total damage in half after all bonuses, Effort, and other damage modifiers). You can return to your normal size as part of another action. When the effects of Shrink end, your Speed Edge, movement speed, and damage return to normal, and you subtract a number of points from your Speed Pool equal to the number you gained (if this brings the Pool to 0, subtract the overflow first from your Might Pool and then, if necessary, from your Intellect Pool). Each additional time you use Shrink before your next ten-hour recovery roll, you must apply an additional level of Effort (one level of Effort for the second use, two levels of Effort for the third use, and so on).
Action to initiate.
Your decreased size makes it difficult to find you. While Shrink is active on you, all stealth tasks you attempt are eased.
When you use Shrink, you can choose to shrink down to about half an inch (1 cm) high, and you add 3 more temporary points to your Speed Pool.
You’ve learned how to leverage your strength and accuracy in proportion to your size. Your damage is no longer halved when using Shrink, and climbing and jumping tasks are eased.
You trigger an enzymatic reaction that draws additional mass from another dimension, and you (and your clothing or suit) grow larger. You achieve a height of 9 feet (3 m) and stay that way for about a minute. During that time, you add 4 points to your Might Pool, add +1 to Armor, and add +2 to your Might Edge. While you are larger than normal, your Speed defense rolls are hindered, and you are practiced in using your fists as heavy weapons.
When the effects of Enlarge end, your Armor and Might Edge return to normal, and you subtract a number of points from your Might Pool equal to the number you gained (if this brings the Pool to 0, subtract the overflow first from your Speed Pool and then, if necessary, from your Intellect Pool). Each additional time you use Enlarge before your next ten-hour recovery roll, you must apply an additional level of Effort. Thus, the second time you use Enlarge, you must apply one level of Effort; the third time you use Enlarge, two levels of Effort; and so on.
Action to initiate.
A character who Shrinks to Minute Size who chooses to learn abilities like Enlarge will never be quite as big as one who Grows to Towering Heights, but they can enjoy the advantages of being big or small as needed.
or
You can activate Shrink as part of another action (the ability is now an enabler for you instead of an action). While the one-minute duration of Shrink is active, on your turn you can change size once before taking an action and once after taking an action. For example, on your turn you could change to small size, make an attack, and then return to your normal size, or you could change to your normal size, use your action to move a short distance, and then return to small size.
For the next hour, when using Shrink, you can fly through the air. You might accomplish this flight by growing wings from your body, extending wings from your suit, calling a tiny creature to carry you, or “surfing” air currents. When flying, you can move up to a short distance as part of another action or a long distance if all you do on your turn is move.
Action to initiate
You can use Shrink on other willing creatures within an immediate distance. In addition to the normal options for using Effort, you can choose to use Effort to affect more targets; each level of Effort affects one additional target. Unless these creatures have an ability to change their size, they remain small until the one-minute duration of Shrink ends for them.
When you use Enlarge, you can choose to grow up to 12 feet (4 m) in height, and you add 3 more temporary points to your Might Pool.
or
When you use Shrink, you can choose to shrink down to about one-sixteenth of an inch (.2 cm). When you do, you add 5 more temporary points to your Speed Pool (plus any from Smaller), and because your attacks are concentrated into a very small area, you deal an additional 2 points of damage. For each level of Effort you apply to shrink even more, you become one-tenth as tall (one one-hundredth for two levels of Effort, one one-thousandth for three, and so on) and you add 1 more point to your Speed Pool.
GM Intrusions: A creature thinks the small character is potential food. The small character gets trapped in a tiny space or under a falling object.