class_warrior_status.xml

<statusEffects>
  <statusEffect>
    <turns>8</turns>
    <name>Warrior's Rage</name>
    <key>class_warrior_status</key>
    <icon>statuseffects_8</icon>
    <modifiers>
      <modifiers>
        <type>CritChance</type>
        <amount>0.5</amount>
      </modifiers>
    </modifiers>
  </statusEffect>
</statusEffects>