--No.37 希望織竜スパイダー・シャーク
function c37279508.initial_effect(c)
	--xyz summon
	aux.AddXyzProcedure(c,aux.FilterBoolFunction(Card.IsAttribute,ATTRIBUTE_WATER),4,2)
	c:EnableReviveLimit()
	--atk down
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(37279508,0))
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCountLimit(1,37279508)
	e1:SetCost(c37279508.atkcost)
	e1:SetTarget(c37279508.atktg)
	e1:SetOperation(c37279508.atkop)
	c:RegisterEffect(e1)
	--spsummon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(37279508,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCountLimit(1,37279509)
	e2:SetCondition(c37279508.spcon)
	e2:SetTarget(c37279508.sptg)
	e2:SetOperation(c37279508.spop)
	c:RegisterEffect(e2)
end
c37279508.xyz_number=37
function c37279508.atkcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():CheckRemoveOverlayCard(tp,1,REASON_COST) end
	e:GetHandler():RemoveOverlayCard(tp,1,1,REASON_COST)
end
function c37279508.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsFaceup,tp,0,LOCATION_MZONE,1,nil) end
end
function c37279508.atkop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(Card.IsFaceup,tp,0,LOCATION_MZONE,nil)
	local tc=g:GetFirst()
	while tc do
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT+0x1fe0000+RESET_PHASE+PHASE_END)
		e1:SetValue(-1000)
		tc:RegisterEffect(e1)
		tc=g:GetNext()
	end
end
function c37279508.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsReason(REASON_DESTROY) and c:IsReason(REASON_BATTLE+REASON_EFFECT)
end
function c37279508.spfilter(c,e,tp)
	return c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function c37279508.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and c37279508.spfilter(chkc,e,tp) and chkc~=e:GetHandler() end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(c37279508.spfilter,tp,LOCATION_GRAVE,0,1,e:GetHandler(),e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,c37279508.spfilter,tp,LOCATION_GRAVE,0,1,1,e:GetHandler(),e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function c37279508.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
