Why do you believe?

[CliveStaples]

Well, if it works 50% of the time, might as well use it, but don't wait for it to work and proceed to see a doctor.
Let's say this guy that has this power works it away in the hospital's waiting room.
It may just be the case that, when you're called to the doctor's office, you'll already be healed.... if not, the doctor can just do his job.

However, if it just worked that one time that made FutureAndAHope believe in it, then yes, I agree with you... very unreliable.

Here's my point: Naturalism (atheism and materialism, essentially) entails that prayer never works--and when it "does", it's only coincidence.

So if any prayer ever works, you have evidence that disproves atheism.