wind_up_2.xml

<abilities>
  <ability>
    <clone>wind_up</clone>
    <key>wind_up_2</key>
    <description>
      Your next attack gains ⮃+25% Damage⮃, +5 Accuracy and ⮃+4% Stun Chance⮃.
      [p]Stacks up to 3 times, and lasts 1 turn for each stack or until you attack.
    </description>
    <immediateInfo>
      <abilityUseTime>
        <type>weapon</type>
      </abilityUseTime>
      <effects>
        <effects>
          WindUp -> level:2;
        </effects>
      </effects>
    </immediateInfo>
    <unlockInfo>
      <autoDiscover>0</autoDiscover>
      <unlockRequirements>
        <requiredPoints>1</requiredPoints>
      </unlockRequirements>
      <replaces>wind_up</replaces>
    </unlockInfo>
  </ability>
</abilities>