Simple RAW Thread for 3.5 #32: More Seasons than the Simpsons

[Muggins]

Q329: Where are Homunculi discussed, especially when it comes to advancing their HD and anything like HD caps? Just the individual creature entries and the Artificer class feature, or is there another section I'm forgetting about that deals with them, especially the Ebberonian Homunculi?

The Homunculus can be found in MM1. Eberronian Homonculi are found in the Eberron Campaign Setting and Magic of Eberron books. Both follow the standard rules of advancement found in MM1 (under monstrous advancement by RHD) and follow the exceptions written under their monster entries. For Eberronian Homunculi, also refer to the Artificer section (if you're using Artificer to make them).

Q330: Just what does the Advancement section in a creature entry mean in the context of constructs which can be created with more HD? For example, both baseline Homunculus and the Iron Defender have advancement lines in their creature entries that indicate 6 HD as some sort of maximum. In the case of the Golems that appear in the SRD, it seems to indicate at what number of HD they will have to be advanced another size category as well as possibly a max HD cap?

You can't advance a creature by RHD by more than the limit imposed by their "Advancement" section; for example, you can't make a Dedicated Wright with more than 3 RHD. Advancing a monster by RHD may cause an increase in size; for example, a Clay Golem becomes Huge at 19 RHD.