先贴原文
Teamwork Feats (Ex): At 4th level and at 12th level, a twinned summoner gains a bonus teamwork feat. He must meet the prerequisites of the selected teamwork feat. The twinned summoner automatically grants all of his teamwork feats to his eidolon. The eidolon doesn’t need to meet the prerequisites of these teamwork feats.
This ability replaces shield ally and greater shield ally.
这个替换是否可以理解为从1级开始,双子召唤师便可以和幻灵分享所有团队专长,只不过在4级和12级获得额外团队专长?
还是说,因为替换的能力是4级能力,这个能力也必须要4级开始才能生效?