Code:
<if Type = "WeaponSkill">
<if spell="Ukko's Fury">
<if buffactive="Voidwatcher">
<equip when="precast" set="vwUkko" />
</if>
<if area="Abyssea*">
<if buffactive="Berserk">
<equip when="precast" set="BerserkUkko" />
</if>
<else>
<equip when="precast" set="Ukko" />
</else>
</if>
<else>
<if buffactive="Berserk">
<equip when="precast" set="Berserkoutside" />
</if>
<else>
<equip when="precast" set="outside" />
</else>
</else>
</if>
<if spell="Fell Cleave|King's Justice">
<equip when="precast" set="ws" />
</if>
</if>
Does this look correct? Not sure where to put the <if buffactive="Voidwatcher"> part.