Estas são as regras para escolher subdomínios (ênfase minha):
Subdomains—more specific focuses for clerical worship and power that allow players greater flexibility in customizing their characters. Every domain has a number of subdomains listed indented underneath it. Each subdomain replaces a granted power and a number of spells in the domain’s granted spell list.
A cleric who chooses a subdomain must have access to both the domain and its subdomain from her deity. If a cleric selects a subdomain, she cannot select its Associated Domain as her other domain choice (in effect, the subdomain replaces its Associated Domain). Subdomains are treated as equivalent to their Associated Domain for any effect or prerequisite based on domains. If a subdomain has two (or more) Associated Domains, the cleric can only select the subdomain for one of her domains. Subdomains can be selected by druids (except the metal subdomain) and inquisitors (if their deity allows it).
If a domain or subdomain ability calls for a saving throw, the DC of the save is equal to 10 + 1/2 the character’s cleric level + her Wisdom modifier.
A partir disso, concluo que um druida que pode assumir um domínio (por meio do Recurso de classe de vínculo natural ou Recurso de arquétipo) também pode usar um dos subdomínios associados a esse domínio.
Portanto, um druida pode escolher o domínio de fogo ou um dos subdomínios associados: incêndio criminoso, cinzas ou fumaça.
Mas o que acontece quando um druida escolhe outros domínios além dos domínios elementares "originais" por meio de um arquétipo?
Por exemplo, a Treesinger O recurso Plant Bond do arquétipo diz:
The first [form] grants the treesinger one of the following domains: Plant; Growth; Jungle, Swamp. When determining the powers and bonus spells granted by this domain, the treesinger’s effective cleric level is equal to her druid level. A treesinger who selects this option also receives additional domain spell slots, just like a cleric. She must prepare the spell from her domain in this slot, and this spell cannot be used to cast a spell spontaneously.
[...]
Plant bond replaces the druid’s nature bond ability.
O Life Channeler O recurso de preservação de plantas do arquétipo diz:
A life channeler must choose the Plant domain with her nature bond (she can select the Growth subdomain if she wishes). When she performs a coup de grace that kills a sentient humanoid creature (not a summoned creature), she can do so ritualistically in order to affect the area centered on the body with the enrichment version of plant growth. The sacrifice is a death effect.
This ability alters nature bond.
Se um Treesinger tiver o domínio da planta, ela não poderá escolher entre os domínios associados Decay, Growth, Leshy ou Thorns também? Mas apenas o crescimento está listado.
Quando um druida pode escolher um subdomínio em vez de um domínio comum e quando não pode?