system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] what are the limitations of the Lazarus pit?

How long could someone be dead for, before the pit wouldn't work?

Are any wounds or diseases incurable?

If you threw in a hand would a whole body regrow?
gpt
The body must be more or less in tact, lets say ballpark, you need 75% of the body (water less weight) and it has to be more less arranged in the proper shape, the most important part is that the brain has to be in tact as far as possible.

The real downside of the Lazarus Pit comes from how far you are gone when you use it. 

Use it for rejuvenation? Short spurt of rage when you emerge. 

Straight out reanimate a dead body? Welcome to the sequel of Pet Sematary.