Mixed races and templates among non-humans/humanoids

[Promethean]

Are there any rules for non-human/humanoid mixed races?

For example: If a silver or steel dragon was doing their usual thing roleplaying a human bard and got into a seduction competition with a succubus that left them both hungover and regretting their life choices, would the resulting half-breed be a half-dragon templated fiend or a half-fiend templated dragon?

I know other fantasy settings like the elder scrolls universe default to Child = mother's race + unique traits from father(partially because this avoids questions like "how did the mother Survive laying an egg the size of a large dog?"), but are there already existing rules for D&D?

Also for things like templates on non-human races etc, are there any books that deal with that specifically?

[hamishspence]

Are there any rules for non-human/humanoid mixed races?

For example: If a silver or steel dragon was doing their usual thing roleplaying a human bard and got into a seduction competition with a succubus that left them both hungover and regretting their life choices, would the resulting half-breed be a half-dragon templated fiend or a half-fiend templated dragon?


By RAW both would be possible (the book says the "base creature" for a half-fiend needs to be non-good, but non-good silver dragons do exist, so I'd say it's legal to apply the half-fiend template to a silver dragon). And, of course, the half-dragon template has no restrictions preventing it from being applied to a succubus.

You could even have the mother giving birth to (or laying more than one egg, resulting in) several offspring - some being half-dragon fiends, and some being half-fiend dragons.

[Tzardok]

Savage Species, the 3.0 book that introduced things like LA, had a hierarchy of the creature types. Types lower on the pyramid are overwritten by higher things. Outsiders, undead and constructs are at the top, so the child in your example would be the Half-fiend dragon.

[hamishspence]

Actually, the type pyramid simply states that things that normally change the creature's type, don't change the creature's type when that would "push it down the pyramid"

So a half-dragon fiend would be legal - but it wouldn't have the Dragon type, it would retain the Outsider type despite being given the template.


And the type pyramid rules aren't mentioned in 3.5's template-applying rules - so may no longer count.

[Promethean]

Actually, the type pyramid simply states that things that normally change the creature's type, don't change the creature's type when that would "push it down the pyramid"

So a half-dragon fiend would be legal - but it wouldn't have the Dragon type, it would retain the Outsider type despite being given the template.


And the type pyramid rules aren't mentioned in 3.5's template-applying rules - so may no longer count.

Which brings us into edition weirdness.

3.5 allows rules and systems from 3e to be used as long as they weren't updated, but where does that leave rules that were purposely left out yet not explicitly overwritten?