Phantom Prison: Am I Missing Something?

[Porridge]

I love the new Secrets of Magic release. Tons of great options and spells in there.

One spell I'm puzzled by, though, is the Phantom Prison spell. At first glance, it seems worse than the 2nd-level version of Illusory Object in virtually every respect.

You can use Illusory Object(2) to create the illusion of a prison around someone, just like Phantom Prison does. And the target would get a will save to disbelieve when they interacted with the illusion, just like Phantom Prison gives them. And in every other respect, Phantom Prison seems strictly worse than Illusory Object(2):

Phantom Prison takes a 3rd level slot. Illusory Object(2) takes a 2nd level slot.

Phantom Prison takes 3 actions to cast. Illusory Object(2) takes 2 actions to cast.

Phantom Prison has a range of 50'. Illusory Object(2) has a range of 500'.

Phantom Prison has a duration of 1 minute. Illusory Object(2) has a duration of 1 hour.

Phantom Prison effects 1 target. Illusory Object(2) can create an illusory "prison" around every being in a 20 foot burst.

Phantom Prison has the mental trait, and so won't effect creatures immune to such effects. Illusory Object(2) does not.

Phantom Prison has the incapacitation(!!!) trait. Illusory Object(2) does not.

Phantom Prison grants an additional Will save when the spell is cast to function at all. Illusory Object(2) only starts granting Will saves when the target tries to interact with it.

Why would anyone ever take Phantom Prison? Am I missing something?

[shroudb]

it is bad yeah.

there is a single upside, that the Prison is invisible to everyone else except the target, while the illusory object isn't.

So if you make the object a solid wall, the same as is the prison (the one inside cant see outside) then it means that your allies can't see the target unless they also spend actions to disbelief your illusion.