从先祖幻灵和半精灵说起

[爱丽奥丝]

在1级时，先祖幻灵获得召唤师的种族的所有种族特性。一个不是0HD生物的召唤师必须从Pathfinder RPG Core Rulebook中选择一个0HD种族。在决定基于职业等级的效果时，先祖幻灵使用它的总HD作为职业等级（例如人类的奖励技能（skilled）种族特性）。在判断所有效果时（除了在判断是否满足专长先决条件时），先祖幻灵被视作所选生物的类型和子类。先祖幻灵只会获得它的种族的标准种族特性，它不能选择替换种族特性。

At 1st level, an ancestor eidolon gains all of the racial traits associated with its summoner’s race;a summoner who isn’t a 0-Hit Die creature must choose one 0-Hit Die race of his choice from the Pathfinder RPG Core Rulebook. For any effect dependent on class level,an ancestor eidolon uses its total Hit Dice instead (such as with the human’s skilled racial trait). An ancestor eidolon counts as a creature of its chosen race’s type and subtype for all effects, except for the purpose of meeting feat prerequisite requirements. An ancestor eidolon gains only the standard racial traits of its race; it cannot select alternate racial traits.

问题来了，精灵血脉（Elf Blood）：在判断与种族相关的效果时，半精灵同时被视为精灵与人类。

那么，半精灵家的先祖幻灵到底有多少特性，能往多里拿还是少里拿，能拿“人类种族特性”“精灵种族特性”“半精灵种族特性”里面的哪些部分

咱们要以理服人，请发表主张的大家提出明确的讨论依据，而不是单纯基于“我觉得这个太强了”不太合适。

[涅薇儿·德拉诺尔]

在1级时，先祖幻灵获得召唤师的种族的所有种族特性。
在判断所有效果时（除了在判断是否满足专长先决条件时），先祖幻灵被视作所选生物的类型和子类。
因为并不存在可以同时获得三个种族特性的生物来选择，所以我倾向于，半精灵的先祖幻灵可以从半精灵/精灵/人类之一选择一个来获得种族特性。

[白貓]

At 1st level, an ancestor eidolon gains all of the racial traits associated with its summoner's race;a summoner who isn't a 0-Hit Die creature must choose one 0-Hit Die race of his choice from the Pathfinder RPG Core Rulebook. For any effect dependent on class level,an ancestor eidolon uses its total Hit Dice instead (such as with the human's skilled racial trait). An ancestor eidolon counts as a creature of its chosen race's type and subtype for all effects, except for the purpose of meeting feat prerequisite requirements. An ancestor eidolon gains only the standard racial traits of its race; it cannot select alternate racial traits.

召喚師是半精靈的話，那就只會拿到以下半精靈的Racial Traits不是嗎?

Standard Racial Traits
Ability Score Racial Traits: Half-elf characters gain a +2 bonus to one ability score of their choice at creation to represent their varied nature.
Type: Half-elves are humanoid creatures with both the human and the elf subtypes.
Size: Half-elves are Medium creatures and have no bonuses or penalties due to their size.
Base Speed: Half-elves have a base speed of 30 feet.
Languages: Half-elves begin play speaking Common and Elven. Half-elves with high Intelligence scores can choose any languages they want (except secret languages, such as Druidic). See the Linguistics skill page for more information about these languages.
Elven Immunities: Half-elves are immune to magic sleep effects and gain a +2 racial saving throw bonus against enchantment spells and effects.
Adaptability: Half-elves receive Skill Focus as a bonus feat at 1st level.
Keen Senses: Half-elves receive a +2 racial bonus on Perception checks.
Low-Light Vision: Half-elves can see twice as far as humans in conditions of dim light.
Elf Blood: Half-elves count as both elves and humans for any effect related to race.
Multitalented: Half-elves choose two favored classes at first level and gain +1 hit point or +1 skill point whenever they take a level in either one of those classes.