savage_efficiency.xml

<abilities>
  <ability>
    <name>Savage Efficiency</name>
    <key>savage_efficiency</key>
    <skill>dreadheart</skill>
    <icon>savage_efficiency</icon>
    <description>
      While Battle Trance is active, whenever you are attacked, ⮃10% chance⮃ to gain [b]Savage Efficiency[/b]
      until Battle Trance ends. Does not stack.
      [p][b]Savage Efficiency[/b]: melee and ranged abilities cost ⮃25% less Energy⮃
    </description>
    <type>Upgrade</type>
    <subType>battle_trance</subType>
    <passiveInfo>
      <triggers>
        <triggers>
          KEY savage_efficiency_trigger;
          WHEN PlayerIsAttacked -> chance:0.10;
          THEN ApplyStatusEffect -> key:«LINK:savage_efficiency_status», target:player;
        </triggers>
      </triggers>
    </passiveInfo>
    <unlockInfo>
      <autoDiscover>0</autoDiscover>
      <unlockRequirements>
        <requiredPoints>1</requiredPoints>
        <requires>savage_bleed OR ironclad_defense</requires>
      </unlockRequirements>
    </unlockInfo>
    <requirements>
      <requirements>
        <type>status_effect_active</type>
        <params>
          <params type="status_key">battle_trance</params>
          <params type="status_name">Battle Trance</params>
          <params type="match_start">true</params>
        </params>
      </requirements>
    </requirements>
    <statusEffects>
      <statusEffects>
        <name>Savage Efficiency</name>
        <key>savage_efficiency_status</key>
        <icon>savage_efficiency</icon>
        <allowMany>false</allowMany>
        <hasTurns>false</hasTurns>
        <modifiers>
          <modifiers>
            <type>MeleeCostReduction</type>
            <amount>0.25</amount>
          </modifiers>
          <modifiers>
            <type>RangedCostReduction</type>
            <amount>0.25</amount>
          </modifiers>
        </modifiers>
      </statusEffects>
    </statusEffects>
  </ability>
</abilities>