breakthrough_3.xml

<abilities>
  <ability>
    <clone>breakthrough</clone>
    <key>breakthrough_3</key>
    <unlockInfo>
      <autoDiscover>0</autoDiscover>
      <unlockRequirements>
        <requiredPoints>1</requiredPoints>
      </unlockRequirements>
      <replaces>breakthrough_2</replaces>
      <unlockEffects>
        <unlockEffects>
          THEN LearnEnchantment -> type:standard;
        </unlockEffects>
      </unlockEffects>
    </unlockInfo>
  </ability>
</abilities>