Arkhandus, I hope we will not loose you. Maybe will some of this information help you to decide what to do:
Unfortunately there's no Flaw in M&M that can be used for an array or an individual power that would give something like 1 minute or 30 seconds of use per hour or 5 minutes per twelve hours or per day or whatever.
Then let's create one!
Or we could make 4d-f like a 'mini-array' in the container and reply the '5-times' flaw on it.
certainly some stuff in Mecha & Manga would help with her ninja-ness
I allowed some of them and gave you reasons for the decisions. We can work on changing them in a way that I would allow them.
and Luck feats only grant hero points once, then they're gone forever once you use them.
As I understood, they are regained like standard HP between adventures. I usually do this between longer chapters (but not necessarily every scene).
...both have limited invisibility but slightly different, both have similar Stealth skill bonuses, and both have ranged attacks and mental attacks (though Kunai-Hime's mental attack is a melee technique similar to Dim Mak, albeit less deadly).
Your limited invisibility is actually more useful during combat. Octavia isn't really a melee build.
Both are apparently scouts/sneaks by nature, but with slightly different means......one flies and has total invisibility when not attacking, while the other is limited to slow, normal movement with a chance of being heard or spotted...
Octavia can still be heard. And I would allow rank 1 or 2 speed as 'ninja movement'.
...and has the minor advantage of some skill at overcoming locks/traps..... And I'm not sure if that would even matter anyway in fighting invading aliens and whatever alien-tech they might use for security.
Reminds me of posting more of the setting:
The aliens already lured the world’s superheroes into a 'trap' and killed or imprisoned the vast majority of them some
years ago.
They sent another alien race, they use as soldiers and guards first, then posed as friendly allies who scared the 'Fins' away.
At a major speech, which almost all politicians, high militaries and superheroes attended, they unleashed their death beams and called the 'Fins' back.
They now act as earth's alien overlords. Their policy is to kill anyone exhibiting paranormal powers, the only option open for such individuals is fight or flight!
Important for your build: They use mostly the 'normal' buildings, so some skill at overcoming locks/traps will be pretty useful.
I'm not sure how much setting material I may copy and paste here, but I'm sure the good guys and gals at Pinnacle will allow me to share enough of it to be able to play the game
