Alright, let's get this finished once and for all. I have objectively more important FMA revisions to attend to so I'd like to make this quick.
The Stone, how it's made and what it's composed of
The Philosopher's Stone goes by many names, The Sages Stone, The Stone of Heaven, The Great Elixir, The Red Tincture, the Fifth Element. The Philosopher's Stone acts as an Alchemical Amplifier that allows to make the impossible possible and for a very good reason.
The Stone allows for the user to bypass the Law's of Equivalent Exchange The Law of Equivalent Exchange, which is based upon two concepts.
the concepts are the Law of Mass Conversion and the Law of Natural Providence now what does this mean exactly? The Stone has the ability to turn Inorganic Matter into Organic Matter, and vice versa, The Stone also allows the user to create something out of nothing. The latter is the most important part to take away for the next part of this.
how is the stone made?
Quite simple, anyone who's bothered reading the Manga, or even the non-canon anime ( which is probably most of you tbh, a anime masterpiece. )
this stone is made from souls more specifically human souls are sacrificed and used in the Stone this is stated several times in the manga and it's quite literally the plot-point of the entire series.
What is the stone made of?
Arguably the most important thing here to note, given the fact that some peeps here are completely clueless to what the stone actually is. But let me start this off by saying this, anyone arguing that the Stone is an actual Stone like a random rock clearly isn't very knowledgeable on the series, therefore the argument of High-Mid needs to be dropped immediately, and it's best if the OP could remove it from the original argument as he doesn't even agree with it anymore.
The Stones composition is also pretty simple to comprehend.
The Philosopher Stone is composed of a High-energy Substance as stated by Edward Edward being the same person who's seen a decent chunk of The Gate of Truth twice, which grants anyone who passes through it immense knowledge, and has the direct research material from Doctor Marcoh who's the one that
makes the Stone to begin with.
the souls ARE the ingredients for the Philosopher Stone Edward even turns himself into a Philosopher's Stone, which is simply a soul The Philosopher's Stone is nothing more than the mere Amalgamation of Souls given form. And the Stone isn't the actual heart of the Homunculi, The Stone isn't an organ and they already have normal hearts. To a Homunculi what the Stone is, is their core, their essence, etc.
Normal Homunculi Regenerationn
Now we'll dive into the Spicy stuff, as we know The Philosopher's Stone has the ability to create
something from
nothing as shown several times, this alone should be evident on how potent the Regenerationn for the Homunculi should be, as that alone would mean they're able to recreate their bodies if nothing is left. Of course as long as the Philosopher's Stone still has it's tempest of Souls, but for those of you who prefer actual shown feats then we can do that too.
Homunculi can easily regenerate from Mid levels of Destruction Mid-High as Lust as vaporized ( at least her physical body. ) once again Mid-High for the Physical body being blown to bits ( Note: Gluttony regenerated without his Stone even being present in the upper half of his body.) creating new bodies from the Stone even after the pshycial body has been dusted these feats alone should debunk any notion that they should only have Low-High Regenerationn, at least for the
actual bodies of the Homunculi in question.
Father and Hohenheim
Alright, this is another good topic, one that the majority of us agree with having Low-Godly aside from Monarch, who's wrong for several reasons and is proven wrong by the actual manga itself and by Hohenheim.
first of all Hohenheim IS the stone, nothing but a mere human being with thousands souls within him which is stated several times said souls within him are intangible, and we already know that Homunculi regenerate directly from these souls. Trying to claim that if his body is destroyed then the souls will also be destroyed is completely asinine. As long as the souls
exist they'll continue to regenerate and resurrect Hohenheim, so unless both his body and surplus of souls are nuked then he'll continue to regenerate until the souls are depleted.
Furthermore Hohenheim attempted to use Monarch's little theory of destroying the body in order to attempt to rid the world of Father.
but... what do you know? Father sheds his physical body and takes the form of a mass of immaterial shadows a state that's similar to that of his original form matter simply phases through him Greed another Homunculi also finds himself unable to interact with Father