Gravekeeper's
When this card is flipped face-up: You can target 1 card in your opponent's GY; place that target on the bottom of their Deck. If this card is sent from the field to the GY after being flipped face-up: You can target 1 "Necrovalley" card in your GY; add that target to your hand. These effects are unaffected by "Necrovalley".
local SETCARD_ID_0 = 0x91 --Necrovalley

local SETCARD_ID_0 = 0x91 --Necrovalley
local s, id, o = GetID()
function s.initial_effect(c)
	--return to deck
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_TODECK)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_FLIP)
	e1:SetTarget(s.tdtg)
	e1:SetOperation(s.tdop)
	c:RegisterEffect(e1)
	--salvage
	local e2 = Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_CONTINUOUS)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e2:SetCode(EVENT_FLIP)
	e2:SetOperation(s.flipop)
	c:RegisterEffect(e2)
	local e3 = Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id, 1))
	e3:SetCategory(CATEGORY_TOHAND)
	e3:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
	e3:SetCondition(s.thcon)
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
	--immune to necro valley
	local e4 = Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetCode(EFFECT_NECRO_VALLEY_IM)
	c:RegisterEffect(e4)
end
function s.tdtg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsControler(1 - tp) and chkc:IsLocation(LOCATION_GRAVE) and chkc:IsAbleToDeck()
	end
	if chk == 0 then
		return Duel.IsExistingTarget(Card.IsAbleToDeck, tp, 0, LOCATION_GRAVE, 1, nil)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TODECK)
	local g = Duel.SelectTarget(tp, Card.IsAbleToDeck, tp, 0, LOCATION_GRAVE, 1, 1, nil)
	Duel.SetOperationInfo(0, CATEGORY_TODECK, g, 1, 0, 0)
end
function s.tdop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoDeck(tc, nil, SEQ_DECKBOTTOM, REASON_EFFECT)
	end
end
function s.flipop(e, tp, eg, ep, ev, re, r, rp)
	e:GetHandler():RegisterFlagEffect(id, RESET_EVENT + 0x57a0000, 0, 0)
end
function s.thcon(e, tp, eg, ep, ev, re, r, rp)
	return e:GetHandler():GetFlagEffect(id) ~= 0
end
function s.filter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsAbleToHand()
end
function s.thtg(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)
	end
	if chk == 0 then
		return Duel.IsExistingTarget(s.filter, tp, LOCATION_GRAVE, 0, 1, nil)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
	local g = Duel.SelectTarget(tp, s.filter, tp, LOCATION_GRAVE, 0, 1, 1, nil)
	Duel.SetOperationInfo(0, CATEGORY_TOHAND, g, 1, 0, 0)
end
function s.thop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc, nil, REASON_EFFECT)
		Duel.ConfirmCards(1 - tp, tc)
	end
end


Gravekeeper's
When this card is flipped face-up: You can target 1 card in your opponent's GY; place that target on the bottom of their Deck. If this card is sent from the field to the GY after being flipped face-up: You can target 1 "Necrovalley" card in your GY; add that target to your hand. These effects are unaffected by "Necrovalley".
-- Gravekeeper's
local SETCARD_ID_0 = 0x91 --Necrovalley
local s, id, o = GetID()
function s.initial_effect(c)
	--return to deck
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_TODECK)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_FLIP)
	e1:SetTarget(s.tdtg)
	e1:SetOperation(s.tdop)
	c:RegisterEffect(e1)
	--salvage
	local e2 = Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_CONTINUOUS)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e2:SetCode(EVENT_FLIP)
	e2:SetOperation(s.flipop)
	c:RegisterEffect(e2)
	local e3 = Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id, 1))
	e3:SetCategory(CATEGORY_TOHAND)
	e3:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
	e3:SetCondition(s.thcon)
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
	--immune to necro valley
	local e4 = Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetCode(EFFECT_NECRO_VALLEY_IM)
	c:RegisterEffect(e4)
end
function s.tdtg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsControler(1 - tp) and chkc:IsLocation(LOCATION_GRAVE) and chkc:IsAbleToDeck()
	end
	if chk == 0 then
		return Duel.IsExistingTarget(Card.IsAbleToDeck, tp, 0, LOCATION_GRAVE, 1, nil)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TODECK)
	local g = Duel.SelectTarget(tp, Card.IsAbleToDeck, tp, 0, LOCATION_GRAVE, 1, 1, nil)
	Duel.SetOperationInfo(0, CATEGORY_TODECK, g, 1, 0, 0)
end
function s.tdop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoDeck(tc, nil, SEQ_DECKBOTTOM, REASON_EFFECT)
	end
end
function s.flipop(e, tp, eg, ep, ev, re, r, rp)
	e:GetHandler():RegisterFlagEffect(id, RESET_EVENT + 0x57a0000, 0, 0)
end
function s.thcon(e, tp, eg, ep, ev, re, r, rp)
	return e:GetHandler():GetFlagEffect(id) ~= 0
end
function s.filter(c)
	return c:IsSetCard(SETCARD_ID_0) and c:IsAbleToHand()
end
function s.thtg(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)
	end
	if chk == 0 then
		return Duel.IsExistingTarget(s.filter, tp, LOCATION_GRAVE, 0, 1, nil)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
	local g = Duel.SelectTarget(tp, s.filter, tp, LOCATION_GRAVE, 0, 1, 1, nil)
	Duel.SetOperationInfo(0, CATEGORY_TOHAND, g, 1, 0, 0)
end
function s.thop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc, nil, REASON_EFFECT)
		Duel.ConfirmCards(1 - tp, tc)
	end
end

