--“Case of K9”
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_TOHAND+CATEGORY_SEARCH)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id+EFFECT_COUNT_CODE_OATH)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--atk up
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetTarget(aux.TargetBoolFunction(Card.IsSetCard,0x1cb))
	e2:SetCondition(s.atkcon)
	e2:SetValue(900)
	c:RegisterEffect(e2)
	--set
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_DESTROYED)
	e3:SetCountLimit(1,id)
	e3:SetCondition(s.setcon)
	e3:SetTarget(s.settg)
	e3:SetOperation(s.setop)
	c:RegisterEffect(e3)
	Duel.AddCustomActivityCounter(id,ACTIVITY_CHAIN,s.chainfilter)
end
function s.chainfilter(re,tp,cid)
	local loc=Duel.GetChainInfo(cid,CHAININFO_TRIGGERING_LOCATION)
	return not (re:IsActiveType(TYPE_MONSTER) and loc&(LOCATION_HAND|LOCATION_GRAVE)>0)
end
function s.thfilter(c)
	return c:IsSetCard(0x1cb) and c:IsType(TYPE_MONSTER) and c:IsAbleToHand()
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(s.thfilter,tp,LOCATION_DECK,0,nil)
	if g:GetCount()>0 and Duel.SelectYesNo(tp,aux.Stringid(id,3)) then
		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
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetCustomActivityCount(id,1-e:GetHandlerPlayer(),ACTIVITY_CHAIN)>0
end
function s.setcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousLocation(LOCATION_SZONE) and c:IsReason(REASON_EFFECT)
end
function s.setfilter(c)
	return c:IsSetCard(0x1cb) and c:IsType(TYPE_QUICKPLAY) and c:IsSSetable()
end
function s.settg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.setfilter,tp,LOCATION_DECK+LOCATION_GRAVE,0,1,nil) end
end
function s.setop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SET)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.setfilter),tp,LOCATION_DECK+LOCATION_GRAVE,0,1,1,nil)
	if g:GetCount()>0 then
		Duel.SSet(tp,g:GetFirst())
	end
end
