overload.xml

<abilities>
  <ability>
    <name>Overload</name>
    <key>overload</key>
    <skill>fulmination</skill>
    <icon>overload</icon>
    <description>
      Whenever you cast a spell that requires Tyros Attunement, gain 1 Overload stack. Stacks up to 5 times.
      [p]On basic attack: consume all Overload stacks to deal +3 Thunder Damage per stack to the target.
      [p]At 5 stacks: the next Fulmination spell that deals damage consumes all stacks to deal +100% Thunder
      Damage and has +100% Stun Chance.
      [p]If no new stacks are gained in 3 turns, lose 1 stack.
    </description>
    <type>Passive</type>
    <passiveInfo>
      <triggers>
        <triggers>
          KEY overload_gain_stack;
          WHEN PlayerUsesAbility -> hasStatRequirement:TyrosAttunement,
          exclude_root_abilities:phase_instability;
          AND NOT HasStatusEffect -> key:overload_status, target:player;
          THEN ApplyStatusEffect -> key:«LINK:overload_status», target:player;
        </triggers>
      </triggers>
      <attackModifiers>
        <attackModifiers>
          <type>OverloadCustomBehavior</type>
        </attackModifiers>
      </attackModifiers>
    </passiveInfo>
    <unlockInfo>
      <autoDiscover>0</autoDiscover>
      <unlockRequirements>
        <requiredPoints>2</requiredPoints>
        <requires>galvanic_bloom OR static_lance</requires>
      </unlockRequirements>
    </unlockInfo>
    <requirements>
      <requirements>
        <type>HasStat</type>
        <params>
          <params type="key">TyrosAttunement</params>
          <params type="amount">1</params>
        </params>
      </requirements>
    </requirements>
  </ability>
</abilities>