Inflict status question

[Heisho]

Hello there!

I apologize if this question is dumb but I'm having second thoughts about what I'm doing.
The thing is like this:
If I add a store inflict status on a formula routine and specify the status on the routine itself instead of using the Procs box for status WITHOUT adding the check for valid status changes, will it be inflicted?
Say that I want to add petrify but adding all pertaining code on the formula and not adding the check. If a unit that has inmunity to petrify (except for immortals) will be petrified?

Sorry if my explanation is not good.

Thanks in advance