TFS 1.X+ Attack/Spell "outfit"

[CastorFlynn]

I'm trying to make a script to tame Donkey, but the Incredibly Old Witch only changes the player's outfit, it doesn't change the outfit of other monsters. I saw that the attack/spell "outfit" is declared in the source, but I didn't find any formula about it. Does anyone know where the code for this attack "outfit" is and what might be preventing it from transforming other monsters as well?

TFS 1.3

<?xml version="1.0" encoding="UTF-8"?>
<monster name="Incredibly Old Witch" nameDescription="an incredibly old witch" race="blood" experience="0" speed="180">
    <health now="100" max="100"/>
    <look type="54" corpse="6081"/>
    <targetchange interval="5000" chance="8"/>
    <flags>
        <flag summonable="0"/>
        <flag attackable="1"/>
        <flag hostile="1"/>
        <flag illusionable="0"/>
        <flag convinceable="0"/>
        <flag pushable="1"/>
        <flag canpushitems="1"/>
        <flag canpushcreatures="0"/>
        <flag targetdistance="4"/>
        <flag staticattack="90"/>
        <flag runonhealth="100"/>
    </flags>
    <attacks>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="rat" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="chicken" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="green frog" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="bug" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="pig" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="kongra" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="dog" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="skunk" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
        <attack name="outfit" interval="4000" chance="12" range="7" target="1" radius="4" monster="donkey" duration="2000">
            <attribute key="areaEffect" value="blueshimmer"/>
        </attack>
    </attacks>
        <immunities>
        <immunity physical="1"/>
        <immunity energy="1"/>
        <immunity fire="1"/>
        <immunity poison="1"/>
        <immunity ice="1"/>
        <immunity holy="1"/>
        <immunity death="1"/>
        <immunity lifedrain="1"/>
        <immunity manadrain="1"/>
        <immunity paralyze="1"/>
        <immunity drunk="1"/>
        <immunity invisible="1"/>
    </immunities>
    <voices interval="5000" chance="10">
        <voice sentence="Feel the wrath of the witch!"/>
        <voice sentence="Oh how you will regret to have disturbed me!"/>
        <voice sentence="I will teach them all to leave me alone!"/>
        <voice sentence="Everyone is so stupid!"/>
        <voice sentence="Stupid people!"/>
    </voices>
</monster>