Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is in your Graveyard and you have 3 or more "Laval" monsters with different names in your Graveyard: You can banish this card and 1 other "Laval" monster from your Graveyard to target 1 Set card your opponent controls; destroy that target.
--ラヴァル炎湖畔の淑女
--Laval Lakeside Lady
local s,id=GetID()
function s.initial_effect(c)
	--destroy
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_GRAVE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCondition(s.descon)
	e1:SetCost(s.descost)
	e1:SetTarget(s.destg)
	e1:SetOperation(s.desop)
	c:RegisterEffect(e1)
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetMatchingGroup(Card.IsSetCard,tp,LOCATION_GRAVE,0,nil,SET_LAVAL):GetClassCount(Card.GetCode)>=3
end
function s.cfilter(c)
	return c:IsSetCard(SET_LAVAL) and c:IsAbleToRemoveAsCost()
end
function s.descost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return aux.bfgcost(e,tp,eg,ep,ev,re,r,rp,0)
		and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_GRAVE,0,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	local g=Duel.SelectMatchingCard(tp,s.cfilter,tp,LOCATION_GRAVE,0,1,1,e:GetHandler())
	g:AddCard(e:GetHandler())
	Duel.Remove(g,POS_FACEUP,REASON_COST)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsControler(1-tp) and chkc:IsFacedown() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsFacedown,tp,0,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectTarget(tp,Card.IsFacedown,tp,0,LOCATION_ONFIELD,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsFacedown() and tc:IsRelateToEffect(e) then
		Duel.Destroy(tc,REASON_EFFECT)
	end
end