My gut says
-[ ] Rush to the other prisoners. You're not letting these people die, whatever the reason. If you weren't willing to kill them in a battle, you're not willing to let somebody do it in cold blood.
The biggest problem I see is the power level issue. We're restricted to, oh, 1-2 million because we want the prisoners to live and NOT know just how strong we really are. The rogues are under no such restriction because they're planning to kill the witnesses anyway.
So we may need another option.
Question: Why can't we use long-range communication telepathy, or Instant Transmission to Daddy and back?
Because our royal ancestors invested in a
very good magically warded cell block. To wit, one that does not let the prisoners telepathically signal comrades on the outside, or
teleport out of the jail. A jail you can teleport out of isn't much of a jail, after all.
It's called a kamehameha.
A jail cell that a random guy who practices his Turtle Waves can blast out of is
also not much of a jail. I'm pretty sure the prison wards can withstand any energy blast a normal saiyan is plausibly capable of.
Your post is borked, and multiform is currently disabled(which is honestly an issue that had never been brought up before).
To be fair, we were told that it has duration limits, so it's unsurprising that we can use it up if we're spending Multiform time on things like social activities that are relatively time-consuming.
Oh, I know.
And to repeat fictions question, why is powering up to ludicrous levels a bad idea, Masquerade wise, when last we checked the Scouts couldn't detect PL's without a scouter?
Because when you power up to ludicrous levels, it tends to have physical effects like shattering the ground and causing hella-bright auras to erupt? I wouldn't bet on the scouts not figuring this out. They're not stupid.