[@Zynros]

I mean an actual limit on its functionality. As it's, that ability has the potential to be greatly abused, for example, to completely nullify the threat of a boss fight.

We'll dictate that it, at the very least, has power level limit and, anything above a certain threshold that we deem reasonable, will not get captured. I hope you understand that we have our reasons to be wary of this kind of power being used for things we didn't foresee and, the kind of arguments that can come from such circumstances.

Summing it up: aside from any logical restrictions like not being able to capture a whole ship, or building, at once; we'll say if any specific NPC can or not be captured when you try to do it IC.