lockdown.xml

<abilities>
  <ability>
    <name>Lockdown</name>
    <key>lockdown</key>
    <skill>Swords</skill>
    <icon>lockdown</icon>
    <tagline>"Hey, you in the back, stay a while."</tagline>
    <description>
      Piercing Skewer immobilizes enemies 2 or more tiles away for 2 more turns.
    </description>
    <type>Upgrade</type>
    <unlockInfo>
      <autoDiscover>0</autoDiscover>
      <unlockRequirements>
        <requiredPoints>2</requiredPoints>
        <requires>piercing_skewer</requires>
      </unlockRequirements>
    </unlockInfo>
  </ability>
</abilities>