I've got a character who is literally a hard light construct projected by a non-corporeal intelligence. Naturally this leads to a number of effects, such as dispersion when the hard light powers shut down, but the part I'm having trouble figuring out is how to make him effectively non-human. That is to say, not at all susceptible to things like poison, disease, suffocation, starvation, and all those little issues that fleshy characters have to deal with. Do I really have to take a list of Immunities (given how Immunity is described, as threat-specific), or is there some better way to do this? And what if I run out of PP? Does my non-corporeal character suddenly need to breathe if he can't spend the PP to activate Immunity?
By themselves, high ratings in Durability and Stamina can also (depending on how the character is described) include resistance or immunity to mortal concerns like poison, disease, environmental effects, etc. An Immunity SFX on top of those should be sufficient to cover all the bases.
As for your running out of PP dilemma, usually Immunity lasts for a scene for things like needing to breathe. Also, you should nev be out of PPs. Use a distinction as a d4, instant plot point! Not actually rolling dice, but still need a PP? All it costs is 1XP.
Sure, Act 1 Scene 1 you might run into issues—before you have a chance to gain any XP or roll some dice, but after that you should be golden!