Dark
If this card is Normal or Special Summoned: You can send 1 Fiend or Zombie Ritual Monster from your hand or Deck to the GY, then you can add 1 Ritual Spell from your Deck to your hand. If this card is banished: You can target 1 of your banished Level 4 or lower Fiend or Zombie monsters; Special Summon it. You can only use each effect of "Dark Necromancer" once per turn.
local s, id, o = GetID()
function s.initial_effect(c)
	--Tograve
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_TOGRAVE + CATEGORY_SEARCH + CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1, id)
	e1:SetTarget(s.tgtg)
	e1:SetOperation(s.tgop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--spsummon
	local e3 = Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id, 1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_REMOVE)
	e3:SetProperty(EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DELAY)
	e3:SetCountLimit(1, id + o)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.tgfilter(c)
	return c:IsRace(RACE_ZOMBIE + RACE_FIEND) and c:IsAllTypes(TYPE_RITUAL + TYPE_MONSTER) and c:IsAbleToGrave()
end
function s.tgtg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.tgfilter, tp, LOCATION_DECK + LOCATION_HAND, 0, 1, nil)
	end
	Duel.SetOperationInfo(0, CATEGORY_TOGRAVE, nil, 1, tp, LOCATION_DECK)
end
function s.thfilter(c)
	return c:IsAllTypes(TYPE_RITUAL + TYPE_SPELL) and c:IsAbleToHand()
end
function s.tgop(e, tp, eg, ep, ev, re, r, rp)
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TOGRAVE)
	local g = Duel.SelectMatchingCard(tp, s.tgfilter, tp, LOCATION_DECK + LOCATION_HAND, 0, 1, 1, nil)
	if g:GetCount() > 0 then
		if Duel.SendtoGrave(g, REASON_EFFECT) > 0 and g:IsExists(Card.IsLocation, 1, nil, LOCATION_GRAVE) then
			local sg = Duel.GetMatchingGroup(s.thfilter, tp, LOCATION_DECK, 0, nil)
			if #sg > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 2)) then
				Duel.BreakEffect()
				Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
				local tg = sg:Select(tp, 1, 1, nil)
				Duel.SendtoHand(tg, nil, REASON_EFFECT)
				Duel.ConfirmCards(1 - tp, tg)
			end
		end
	end
end
function s.spfilter(c, e, tp)
	return c:IsFaceup() and c:IsRace(RACE_FIEND + RACE_ZOMBIE) and c:IsLevelBelow(4) 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_REMOVED) and chkc:IsControler(tp) and s.spfilter(chkc, e, tp)
	end
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingTarget(s.spfilter, tp, LOCATION_REMOVED, 0, 1, nil, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_REMOVED, 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:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
	end
end


Dark
If this card is Normal or Special Summoned: You can send 1 Fiend or Zombie Ritual Monster from your hand or Deck to the GY, then you can add 1 Ritual Spell from your Deck to your hand. If this card is banished: You can target 1 of your banished Level 4 or lower Fiend or Zombie monsters; Special Summon it. You can only use each effect of "Dark Necromancer" once per turn.
-- Dark
local s, id, o = GetID()
function s.initial_effect(c)
	--Tograve
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_TOGRAVE + CATEGORY_SEARCH + CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1, id)
	e1:SetTarget(s.tgtg)
	e1:SetOperation(s.tgop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--spsummon
	local e3 = Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id, 1))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_REMOVE)
	e3:SetProperty(EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DELAY)
	e3:SetCountLimit(1, id + o)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.tgfilter(c)
	return c:IsRace(RACE_ZOMBIE + RACE_FIEND) and c:IsAllTypes(TYPE_RITUAL + TYPE_MONSTER) and c:IsAbleToGrave()
end
function s.tgtg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.tgfilter, tp, LOCATION_DECK + LOCATION_HAND, 0, 1, nil)
	end
	Duel.SetOperationInfo(0, CATEGORY_TOGRAVE, nil, 1, tp, LOCATION_DECK)
end
function s.thfilter(c)
	return c:IsAllTypes(TYPE_RITUAL + TYPE_SPELL) and c:IsAbleToHand()
end
function s.tgop(e, tp, eg, ep, ev, re, r, rp)
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TOGRAVE)
	local g = Duel.SelectMatchingCard(tp, s.tgfilter, tp, LOCATION_DECK + LOCATION_HAND, 0, 1, 1, nil)
	if g:GetCount() > 0 then
		if Duel.SendtoGrave(g, REASON_EFFECT) > 0 and g:IsExists(Card.IsLocation, 1, nil, LOCATION_GRAVE) then
			local sg = Duel.GetMatchingGroup(s.thfilter, tp, LOCATION_DECK, 0, nil)
			if #sg > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 2)) then
				Duel.BreakEffect()
				Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
				local tg = sg:Select(tp, 1, 1, nil)
				Duel.SendtoHand(tg, nil, REASON_EFFECT)
				Duel.ConfirmCards(1 - tp, tg)
			end
		end
	end
end
function s.spfilter(c, e, tp)
	return c:IsFaceup() and c:IsRace(RACE_FIEND + RACE_ZOMBIE) and c:IsLevelBelow(4) 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_REMOVED) and chkc:IsControler(tp) and s.spfilter(chkc, e, tp)
	end
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingTarget(s.spfilter, tp, LOCATION_REMOVED, 0, 1, nil, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_REMOVED, 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:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
	end
end

