--蒼血鬼
function c7953868.initial_effect(c)
	--to defence
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(7953868,0))
	e1:SetCategory(CATEGORY_POSITION)
	e1:SetType(EFFECT_TYPE_TRIGGER_F+EFFECT_TYPE_SINGLE)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetTarget(c7953868.potg)
	e1:SetOperation(c7953868.poop)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_FLIP_SUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(7953868,1))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetCountLimit(1)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCost(c7953868.spcost)
	e1:SetTarget(c7953868.sptg)
	e1:SetOperation(c7953868.spop)
	c:RegisterEffect(e1)
end
function c7953868.potg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chk==0 then return e:GetHandler():IsAttackPos() end
	Duel.SetOperationInfo(0,CATEGORY_POSITION,e:GetHandler(),1,0,0)
end
function c7953868.poop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsFaceup() and c:IsAttackPos() and c:IsRelateToEffect(e) then
		Duel.ChangePosition(c,POS_FACEUP_DEFENCE)
	end
end
function c7953868.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.CheckRemoveOverlayCard(tp,1,0,1,REASON_COST) end
	Duel.RemoveOverlayCard(tp,1,0,1,1,REASON_COST)
end
function c7953868.filter(c,e,tp)
	return c:IsRace(RACE_ZOMBIE) and c:GetLevel()==4 and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function c7953868.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and c7953868.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(c7953868.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,c7953868.filter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function c7953868.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsRace(RACE_ZOMBIE) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
