--深渊尖枪-三叉
local s,id,o=GetID()
function s.initial_effect(c)
	--activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id+EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--desrep
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_EQUIP)
	e2:SetCode(EFFECT_DESTROY_REPLACE)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	--to deck
	local e3=Effect.CreateEffect(c)
	e3:SetCategory(CATEGORY_TODECK)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetCountLimit(1,id+o)
	e3:SetCost(aux.bfgcost)
	e3:SetTarget(s.tdtg)
	e3:SetOperation(s.tdop)
	c:RegisterEffect(e3)
end
function s.spfilter(c,e,tp)
	return c:IsSetCard(0x74,0x77) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_HAND+LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND+LOCATION_GRAVE)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,e:GetHandler(),1,0,0)
end
function s.eqlimit(e,c)
	return e:GetOwner()==c
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local c=e:GetHandler()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_HAND+LOCATION_GRAVE,0,1,1,nil,e,tp)
	local tc=g:GetFirst()
	if tc and Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)~=0 and Duel.Equip(tp,c,tc) then
		--Add Equip limit
		local e1=Effect.CreateEffect(tc)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_EQUIP_LIMIT)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD)
		e1:SetValue(s.eqlimit)
		c:RegisterEffect(e1)
	end
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	local tg=c:GetEquipTarget()
	if chk==0 then return c:IsAbleToGrave() and not c:IsStatus(STATUS_DESTROY_CONFIRMED)
		and tg and tg:IsReason(REASON_BATTLE+REASON_EFFECT) end
	return Duel.SelectEffectYesNo(tp,c,96)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	Duel.SendtoGrave(e:GetHandler(),REASON_EFFECT+REASON_REPLACE)
end
function s.tdfilter(c)
	return c:IsFaceupEx() and c:IsRace(RACE_AQUA+RACE_FISH+RACE_SEASERPENT) and c:IsAbleToDeck()
end
function s.tdtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE+LOCATION_REMOVED) and chkc:IsControler(tp) and s.tdfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.tdfilter,tp,LOCATION_GRAVE+LOCATION_REMOVED,0,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.tdfilter,tp,LOCATION_GRAVE+LOCATION_REMOVED,0,1,3,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,g:GetCount(),0,0)
end
function s.tdop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetTargetsRelateToChain()
	if g:GetCount()>0 then
		Duel.SendtoDeck(g,nil,SEQ_DECKSHUFFLE,REASON_EFFECT)
	end
end