stance_endurance.xml

<abilities>
  <ability>
    <name>Stance Endurance</name>
    <key>stance_endurance</key>
    <skill>knowledge</skill>
    <icon>knowledge_12</icon>
    <description>
      All stances last 1 turn longer.
    </description>
    <type>passive</type>
    <subType>the_sage</subType>
    <passiveInfo>
      <modifiers>
        <modifiers>
          <type>StanceTurnIncrease</type>
          <amount>1.0</amount>
        </modifiers>
      </modifiers>
    </passiveInfo>
    <unlockInfo>
      <autoUnlock>-1</autoUnlock>
      <autoDiscover>0</autoDiscover>
      <unlockRequirements>
        <worldlorePoints>0</worldlorePoints>
        <mysticismPoints>0</mysticismPoints>
        <philosophyPoints>4</philosophyPoints>
      </unlockRequirements>
    </unlockInfo>
  </ability>
</abilities>