How are "rare, non static" mobs done

[Noselacri]

As far as I'm aware, every spawn in the game has to have a spawn table. This means a list of mobiles that can spawn in the given location, your typical PH/PH/PH/rare scenario. In some cases, such as raid mobs and the occasional normal rare spawn, the PHs are done away with in favor of a really long respawn timer. Assuming that this is correct, any mob has either a PH that spawns from the same table, i.e the exact same spot, or just a really long respawn time. They can have very few conditions, mostly just related to the time of day. A mob can't be spawned by dancing around in your underpants at 4:20PM while facing due west. The spawn mechanic is fairly primitive and has very little room for variables or conditions outside of the various chances for each mob in the encounter table to spawn.

An encounter table might look like this:

--30 min--
30% desert madman
30% dervish cutthroat
30% sand giant
10% ancient cyclops (if night)
10% Sandgiant Steve (if day)

Or like this:

--7 days--
100% Lady Vox

In addition to this, an encounter can spawn only in one location. Thus, barring wandering PHs, a certain mob can't be spawned by killing mobs that spawn in another location than where the mob in question spawns. They can path differently despite being on the same spawn table, however. This is my theory, not proven fact. The only place I've witnessed evidence to the contrary is at the ancient croc camp in guktop, and that appears to be some sort of unique script and not a conventional spawn table.