please i need ur help

[EvilSkillz]

<vocation id="12" name="Legendary Master Sorcerer" description="a legendary master sorcerer" needpremium="0" gaincap="25" gainhp="15" gainmana="5" gainhpticks="8" gainhpamount="70" gainmanaticks="4" gainmanaamount="50" manamultiplier="3.0" attackspeed="1900" soulmax="299" gainsoulticks="15" fromvoc="5" lessloss="30">
<formula meleeDamage="1.2" distDamage="1.0" wandDamage="1.0" magDamage="1.1" magHealingDamage="1.0" defense="1.0" armor="1.0"/>
<skill id="0" multiplier="1.1"/>
<skill id="1" multiplier="1.1"/>
<skill id="2" multiplier="1.1"/>
<skill id="3" multiplier="1.1"/>
<skill id="4" multiplier="1.4"/>
<skill id="5" multiplier="1.1"/>
<skill id="6" multiplier="1.1"/>
</vocation>

Voc 5 = master sorcerer
Voc 12 = Legendary Master Sorcerer

i need make quest give this voc if player have 50 rebirth
how can i do it please give me the codes