Bem, meu priemiro monstro, epero que esteja bão. ele é um ótimo trainer apesar de eu não ter testado , mas eu vi um parecido la na versão 7.6 e ele era perfeito!

bem vamos lá:

<?xml version="1.0" encoding="UTF-8" ?> 
- <monster name="Tilangotrainer" nameDescription="a training Tilango" race="undead" experience="1000000000" speed="0" manacost="600">
 <health now="2400000" max="2400000" /> 
 <look type="212" head="0" body="0" legs="0" feet="0" corpse="4301"/> 
 <targetchange interval="2000" chance="5" /> 
 <strategy attack="100" defense="0" /> 
- <flags>
 <flag summonable="1" /> 
 <flag attackable="1" /> 
 <flag hostile="1" /> 
 <flag illusionable="0" /> 
 <flag convinceable="1" /> 
 <flag pushable="0" /> 
 <flag canpushitems="1" /> 
 <flag staticattack="50" /> 
 <flag lightlevel="0" /> 
 <flag lightcolor="0" /> 
 <flag targetdistance="1" /> 
 <flag runonhealth="0" /> 
 </flags>
- <attacks>
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="melee" interval="2000" min="0" max="0" />
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="heavy magic missile" interval="2000" chance="40" min="0" max="0" /> 
 <attack name="heavy magic missile" interval="2000" chance="40" min="0" max="0" /> 
 <attack name="heavy magic missile" interval="2000" chance="40" min="0" max="0" /> 
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />  <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="large rock" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="spear" interval="1000" chance="100" min="0" max="0" />
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="throwing star" interval="3000" chance="50" min="0" max="0" /> 
 <attack name="heavy magic missile" interval="2000" chance="40" min="0" max="0" /> 
 <attack name="heavy magic missile" interval="2000" chance="40" min="0" max="0" /> 
 <attack name="heavy magic missile" interval="2000" chance="40" min="0" max="0" /> 
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />
 <attack name="bolt" interval="2000" chance="100" min="0" max="0" />





 </attacks>
- <defenses armor="0" defense="0">
 <defense name="Invisible" interval="4000" chance="0" />
 <defense name="ultimate healing" interval="10000" chance="100" min="240000" max="2400000" />
 <defense name="haste" interval="3000" chance="30" /> 
 </defenses>
- <immunities>
 <immunity physical="0" /> 
 <immunity energy="0" /> 
 <immunity fire="0" /> 
 <immunity poison="0" /> 
 <immunity lifedrain="0" /> 
 <immunity paralyze="0" /> 
 <immunity outfit="0" /> 
 <immunity drunk="0" /> 
 <immunity invisible="1" /> 
 </immunities>
- <voices interval="2000" chance="5">
<voice sentence="I don't can kill me." /> 
<voice sentence="Ouch >.<" /> 
<voice sentence="I will Survive!!!" /> 
<voice sentence="You are Noob " /> 
<voice sentence="MINE!" /> 
<voice sentence="YAHOOOOOOOOOOOO" />
<voice sentence="You are on my Trainlist!" />
<voice sentence="Eye for eye, Thoot for thoot!" /> 
<voice sentence="YEEEEEEEEHAAAAAAAAA" />
<voice sentence="GREAT hit..." />
<voice sentence="Congratulations" />
<voice sentence="=*" />
<voice sentence="Uga! Buga!" />

 </voices>

- <loot>
 <item id="2148" countmax="20" chance1="100000" chancemax="0" /> 
 <item id="1949" chance="10000" /> 
 <item id="2467" chance="10000" /> 
 <item id="2642" chance="6666" /> 
- <item id="1987" chance="100000">
- <inside>
 <item id="2044" chance="6666" /> 
 <item id="2689" countmax="3" chance1="20000" chancemax="0" /> 
 <item id="2401" chance="3333" /> 
 <item id="2166" chance="1428" /> 
 </inside>
 </item>
 </loot>
 </monster>

Monsters.Xml

<monster name="TilangoTrainer" file="TilangoTrainer.xml" />

ficobão?

Deem dicas do que pode melhorar =D

TilangoTrainer.xml

Para que você repetiu a tag:

<attack name="melee" interval="2000" min="0" max="0" />

várias vezes? Não há necessidades...