rooted_flame.xml

<abilities>
  <ability>
    <name>Rooted Flame</name>
    <key>rooted_flame</key>
    <skill>pyromancy</skill>
    <icon>rooted_flame</icon>
    <description>
      Fires your abilities place are ⮃1 size⮃ larger: a small fire becomes ⮃medium⮃.
      [p]Small fire: 2-5 Fire Damage per turn, 10% chance to ignite
      [n]Medium fire: 4-8 Fire Damage per turn, 15% chance to ignite
      [p]A fire burns for 15-30 turns at each size, then shrinks to the size below.
    </description>
    <type>Passive</type>
    <passiveInfo>
      <modifiers>
        <modifiers>
          <type>FireSizeIncrease</type>
          <amount>1.0</amount>
        </modifiers>
      </modifiers>
    </passiveInfo>
    <unlockInfo>
      <autoDiscover>0</autoDiscover>
      <unlockRequirements>
        <requiredPoints>2</requiredPoints>
        <requires>line_of_fire OR ignite</requires>
      </unlockRequirements>
    </unlockInfo>
  </ability>
</abilities>