Keeper
This card can be treated as 2 Tributes for the Tribute Summon of a Dragon monster. While this card is in your hand or GY, if a face-up Dragon monster on the field, except "Keeper of the Shrine", is sent to the GY by a card effect or because it was destroyed by battle: You can Special Summon this card, then, if that monster sent to the GY is a Normal Monster, you can add 1 Dragon Normal Monster from your GY to your hand. You can only use this effect of "Keeper of the Shrine" once per turn.
local s, id, o = GetID()
function s.initial_effect(c)
	--double tribute
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_DOUBLE_TRIBUTE)
	e1:SetValue(s.tricon)
	c:RegisterEffect(e1)
	--spsummon
	local e2 = Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON + CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetRange(LOCATION_HAND + LOCATION_GRAVE)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
	e2:SetCountLimit(1, id)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
function s.tricon(e, c)
	return c:IsRace(RACE_DRAGON)
end
function s.cfilter(c)
	return c:IsRace(RACE_DRAGON)
		and c:GetPreviousRaceOnField() == RACE_DRAGON
		and c:IsPreviousPosition(POS_FACEUP)
		and c:IsPreviousLocation(LOCATION_MZONE)
		and c:IsReason(REASON_EFFECT + REASON_BATTLE)
		and not c:IsCode(id)
end
function s.spcon(e, tp, eg, ep, ev, re, r, rp)
	if eg:IsContains(e:GetHandler()) then
		return false
	end
	local g = eg:Filter(s.cfilter, nil)
	if g:GetCount() == 0 then
		return false
	end
	e:SetLabel(0)
	if g:IsExists(Card.IsType, 1, nil, TYPE_NORMAL) then
		e:SetLabel(1)
	end
	return true
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and e:GetHandler():IsCanBeSpecialSummoned(e, 0, tp, false, false)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, e:GetHandler(), 1, 0, 0)
end
function s.thfilter(c)
	return c:IsRace(RACE_DRAGON) and c:IsType(TYPE_NORMAL) and c:IsAbleToHand()
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
		return
	end
	local c = e:GetHandler()
	local g = Duel.GetMatchingGroup(aux.NecroValleyFilter(s.thfilter), tp, LOCATION_GRAVE, 0, nil)
	if not c:IsRelateToEffect(e) then
		return
	end
	if Duel.SpecialSummon(c, 0, tp, tp, false, false, POS_FACEUP) ~= 0 and e:GetLabel() == 1 and g:GetCount() > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 0)) then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
		local sg = g:Select(tp, 1, 1, nil)
		Duel.SendtoHand(sg, nil, REASON_EFFECT)
		Duel.ConfirmCards(1 - tp, sg)
	end
end


Keeper
This card can be treated as 2 Tributes for the Tribute Summon of a Dragon monster. While this card is in your hand or GY, if a face-up Dragon monster on the field, except "Keeper of the Shrine", is sent to the GY by a card effect or because it was destroyed by battle: You can Special Summon this card, then, if that monster sent to the GY is a Normal Monster, you can add 1 Dragon Normal Monster from your GY to your hand. You can only use this effect of "Keeper of the Shrine" once per turn.
-- Keeper
local s, id, o = GetID()
function s.initial_effect(c)
	--double tribute
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_DOUBLE_TRIBUTE)
	e1:SetValue(s.tricon)
	c:RegisterEffect(e1)
	--spsummon
	local e2 = Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON + CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetRange(LOCATION_HAND + LOCATION_GRAVE)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
	e2:SetCountLimit(1, id)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
function s.tricon(e, c)
	return c:IsRace(RACE_DRAGON)
end
function s.cfilter(c)
	return c:IsRace(RACE_DRAGON)
		and c:GetPreviousRaceOnField() == RACE_DRAGON
		and c:IsPreviousPosition(POS_FACEUP)
		and c:IsPreviousLocation(LOCATION_MZONE)
		and c:IsReason(REASON_EFFECT + REASON_BATTLE)
		and not c:IsCode(id)
end
function s.spcon(e, tp, eg, ep, ev, re, r, rp)
	if eg:IsContains(e:GetHandler()) then
		return false
	end
	local g = eg:Filter(s.cfilter, nil)
	if g:GetCount() == 0 then
		return false
	end
	e:SetLabel(0)
	if g:IsExists(Card.IsType, 1, nil, TYPE_NORMAL) then
		e:SetLabel(1)
	end
	return true
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and e:GetHandler():IsCanBeSpecialSummoned(e, 0, tp, false, false)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, e:GetHandler(), 1, 0, 0)
end
function s.thfilter(c)
	return c:IsRace(RACE_DRAGON) and c:IsType(TYPE_NORMAL) and c:IsAbleToHand()
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
		return
	end
	local c = e:GetHandler()
	local g = Duel.GetMatchingGroup(aux.NecroValleyFilter(s.thfilter), tp, LOCATION_GRAVE, 0, nil)
	if not c:IsRelateToEffect(e) then
		return
	end
	if Duel.SpecialSummon(c, 0, tp, tp, false, false, POS_FACEUP) ~= 0 and e:GetLabel() == 1 and g:GetCount() > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 0)) then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
		local sg = g:Select(tp, 1, 1, nil)
		Duel.SendtoHand(sg, nil, REASON_EFFECT)
		Duel.ConfirmCards(1 - tp, sg)
	end
end

