Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If exactly 1 face-up DARK Fiend monster on the field, except this card, would be destroyed, you can banish 1 DARK Fiend monster from your GY, instead. When this card is destroyed and sent from the field to the GY: You can target 1 Level 6 or higher DARK Fiend monster in your GY, except "Archfiend Empress"; Special Summon it.
--ヘル・エンプレス・デーモン
--Archfiend Empress
local s,id=GetID()
function s.initial_effect(c)
	--destroy replace
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_DESTROY_REPLACE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetTarget(s.destg)
	e1:SetValue(1)
	c:RegisterEffect(e1)
	--special summon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
function s.rfilter(c)
	return c:IsRace(RACE_FIEND) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsAbleToRemove() and aux.SpElimFilter(c,true)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	local dc=eg:GetFirst()
	if chk==0 then return #eg==1 and dc~=e:GetHandler() and dc:IsFaceup() and dc:IsLocation(LOCATION_MZONE) 
		and dc:IsRace(RACE_FIEND) and dc:IsAttribute(ATTRIBUTE_DARK) and not dc:IsReason(REASON_REPLACE) 
		and Duel.IsExistingMatchingCard(s.rfilter,tp,LOCATION_MZONE|LOCATION_GRAVE,0,1,nil) end
	if Duel.SelectEffectYesNo(tp,e:GetHandler(),96) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
		local g=Duel.SelectMatchingCard(tp,s.rfilter,tp,LOCATION_MZONE|LOCATION_GRAVE,0,1,1,nil)
		Duel.Remove(g,POS_FACEUP,REASON_EFFECT)
		return true
	else return false end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsReason(REASON_DESTROY) and (e:GetHandler():GetPreviousLocation()&LOCATION_ONFIELD)~=0
end
function s.filter(c,e,tp)
	return c:IsRace(RACE_FIEND) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsLevelAbove(6)
		and c:GetCode()~=id and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end