| SheepishEidolon |
A crossblooded sorcerer has two bloodlines:
Ultimate Magic, page 69 wrote:
A crossblooded sorcerer selects two different bloodlines.
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A crossblooded sorcerer receives the bonus class skill from both of her bloodlines.
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A crossblooded sorcerer may select her bonus spells from either of her bloodlines.
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A crossblooded sorcerer combines the bonus feat lists from both of her bloodlines
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If the archetype would explicitly modify the bloodline class feature, that would be some point against it, but it doesn't.
Potato disciple wrote:
though it never says it can be your ONLY bloodline nor anything about compatibility with other archetypes.
Well, the prestige class is part of the Core Rulebook (CRB) and crossblooded was introduced later. In the CRB there is no (?) option to get a second bloodline.