Scout – What can kill a regenerating creature, except for proper elemental or alignment damage?

The rules are unclear

It was confirmed that trolls could suffocate in Pathfinder, as shown in this answer. But the rules actually say the opposite (as shown in this answer), the regeneration must be stopped or the creature must be stopped can not die,

Regeneration (Ex) A creature with this ability is hard to kill. Regeneration creatures heal the damage at a set rate, like a quick healing They can not die while their regeneration is still working (Although creatures with regeneration are still unconscious when their hit points are below 0). Certain types of attack, usually fire and acid, cause the regeneration of a creature to fail in the round following the attack. During this turn, the creature heals no damage and can die normally. The descriptive text of the creature describes the types of damage that cause the regeneration to stop working.

There is an open FAQ request in the Paizo Messageboards, asking if trolls can be killed by deaths or not.

Also note that the Pathfinder version of Regeneration is formulated differently than in version 3.5 (link), which did not mention that they can not die, and that treated things with non-lethal damage instead. While the resolution spell text is mostly the same, including the part that the target becomes dust,

However, you can try to eliminate their regeneration

One thing is certain: they must stop their regeneration, either with the correct type of damage, with something that prevents regeneration, or by removing the regeneration from the creature (by morphing or transferring).

As much as it sounds ridiculous that a bunch of dust can still regenerate, it kills them immediately with a death effect and lets them come back to life a few laps later.

There are many opportunities deactivate they (sleeping, burying, submerging, including their soul in a gemstone), but they do not kill the creature.

Scout – What can kill a regenerating creature beyond correct elemental or alignment damage?

The rules are unclear

It was confirmed that trolls could suffocate in Pathfinder, as shown in this answer. But the rules actually say the opposite (as shown in this answer), the regeneration must be stopped or the creature must be stopped can not die,

Regeneration (Ex) A creature with this ability is hard to kill. Regeneration creatures heal the damage at a set rate, like a quick healing They can not die while their regeneration is still working (Although creatures with regeneration are still unconscious when their hit points are below 0). Certain types of attack, usually fire and acid, cause the regeneration of a creature to fail in the round following the attack. During this turn, the creature heals no damage and can die normally. The descriptive text of the creature describes the types of damage that cause the regeneration to stop working.

There is an open FAQ request in the Paizo Messageboards, asking if trolls can be killed by deaths or not.

However, you can try to eliminate their regeneration

One thing is certain: they must stop their regeneration, either with the correct type of damage, with something that prevents regeneration, or by removing the regeneration from the creature (by morphing or transferring).

As much as it sounds ridiculous that a bunch of dust can still regenerate, it kills them immediately with a death effect and lets them come back to life a few laps later.

There are many opportunities deactivate they (sleeping, burying, submerging, including their soul in a gemstone), but they do not kill the creature.

dnd 5e – Is there anything that could prevent a wealthy farmer from getting his flesh from regenerating animals?

RAW does not matter for all of this.

The rules could never specify the exact process required for any magical effect a DM would like to invent. There will be no rule for sheep regeneration, nor will a group of cultists invent a ritual that will release Tiamat from their hellish prison.

A DM must be free to invent this stuff for the purposes of its own campaign.

Whether the regeneration could do that (apart from the fact that a DM can always produce the desired effect): The ring of regeneration states explicitly that over time lost body parts will grow back Yes, you could chop off a leg and wait for it to regrows again.

The other questions, how he could do this and whether the meat would be suitable for consumption, fall under DM.

How this will be addressed in terms of alignment is discussed. Probably a can of worms to bring this up.

Economically feasible? Again – this depends too much on your attitude and how the effect is achieved. If it costs 10,000 GpP to create a regenerating cow (not an unfair amount for an incredibly powerful effect), then the dubious farmer could afford it. A single farmer with this secret would probably not disturb the balance too much – though anyone would find out about it, he would probably be the target of every cattle dealer at a distance of 100 miles!

dnd 5e – Could a regenerating troll attract enough attention to live on?

This goes beyond RAW, but does not violate this and is feasible

It's a long way to find supportive literature

The RAW is silent about this type of mechanics; There are no specific answers to your questions 1, 2 and 3 in published papers in 5e. However, in the background literature, there is a precedent that inspired the creation of D & D for this kind of "realism" in a magical ecosystem. In particular, the law of "conservation of organic material" is also strongly represented in active magic.

For example, in the universe of Fritz Lieber, when a character is magical increases or reduced Because of their size, they either suck organic material from nearby creatures to enlarge it (which shrinks the surrounding mummies), or accumulate organic matter (to reduce size). That was in the material that Gygax called inspiration for the invention of D & D, and while this fact is by no means a sufficient argument, it does support the reasonableness of your suggestion, because it says that when magic creates bodily flesh, it does That's got to get raw material from somewhere.

I think your suggestion goes beyond RAW, but it's against nothing, and I'd like to think that Gygax would make you smile.

If you go in that direction, you may find that the troll needs to "go to the bathroom" on a regular basis, which is a problem for dung beetles Swarm of insects?) and the rebels could pick up some beetles from time to time – allowing even more organic material to circulate in the room.

In order to reach a "balance", you have to make some assumptions

To reach a "balance", you could make some assumptions and determine a certain ratio of hit points. In 5e, the hit points seem to be roughly proportional to the mass of the creature, and the nutritional needs also seem to be. So the DM could determine (estimate) what percentage of its own HP a troll would consume daily if it survives and occasionally powers regeneration? This is a guess and may be a number like 10% or 20%.

Assuming that raises are bred annually (as with many creatures) and their brood amount is twice as large (as with many birds), the attrition they can withstand at hit points must match what the troll needs to survive ie the population must be at least Doubling the hit points the troll has to consume in one year. It is a lot of excitement.

Again, it goes beyond RAW and I'm not sure all the details are really needed, but it's a wise thing to include in your game.