--ダークグロウ・アングラー
--Darkglow Angler
--scripted by YoshiDuels
local s,id=GetID()
function s.initial_effect(c)
	-- Mill 1 and add 1 Sea Serpent Maximum monster from the GY to the hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DECKDES+CATEGORY_TOHAND)
	e1:SetRange(LOCATION_MZONE)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetCountLimit(1)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
function s.costfilter(c)
	return c:IsMonster() and c:IsRace(RACE_SEASERPENT) and c:IsAbleToGraveAsCost()
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.costfilter,tp,LOCATION_HAND,0,1,nil) end
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDiscardDeck(tp,1) end
	Duel.SetOperationInfo(0,CATEGORY_DECKDES,nil,0,tp,1)
	Duel.SetPossibleOperationInfo(0,CATEGORY_TOHAND,nil,0,tp,LOCATION_GRAVE)
end
function s.thfilter(c)
	return c:IsRace(RACE_SEASERPENT) and c:IsType(TYPE_MAXIMUM) and c:IsAbleToHand()
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	--Requirement
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local tg=Duel.SelectMatchingCard(tp,s.costfilter,tp,LOCATION_HAND,0,1,1,nil)
	if Duel.SendtoGrave(tg,REASON_COST)~=1 then return end
	--Effect
	Duel.DiscardDeck(tp,1,REASON_EFFECT)
	if Duel.GetOperatedGroup():FilterCount(Card.IsLocation,nil,LOCATION_GRAVE)==0 then return end
	if Duel.IsExistingMatchingCard(aux.NecroValleyFilter(s.thfilter),tp,LOCATION_GRAVE,0,1,nil) and Duel.SelectYesNo(tp,aux.Stringid(id,1)) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
		local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_GRAVE,0,1,1,nil)
		if #g>0 then
			Duel.BreakEffect()
			Duel.SendtoHand(g,nil,REASON_EFFECT)
			Duel.ConfirmCards(1-tp,g)
		end
	end
end