--轟海皇 ポセイドラ
--Poseidra, the Storming Atlantean
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	--Your opponent's monsters cannot target this card for attacks while you control a monster other than "Poseidra, the Rumbling Atlantean"
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetCode(EFFECT_CANNOT_BE_BATTLE_TARGET)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.atkcon)
	e1:SetValue(aux.imval1)
	c:RegisterEffect(e1)
	--Special Summon this card from your hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_HAND)
	e2:SetCountLimit(1,id)
	e2:SetCost(s.spcost)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	--Return 1 card your opponent controls to the hand
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_TOHAND)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e3:SetCode(EVENT_SUMMON_SUCCESS)
	e3:SetCountLimit(1,{id,1})
	e3:SetCost(s.thcost)
	e3:SetTarget(s.thtg)
	e3:SetOperation(s.thop)
	c:RegisterEffect(e3)
	local e4=e3:Clone()
	e4:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e4)
end
s.listed_names={id}
s.listed_series={SET_ATLANTEAN,SET_MERMAIL}
function s.atkfilter(c)
	return c:IsFacedown() or not c:IsCode(id)
end
function s.atkcon(e)
	return Duel.IsExistingMatchingCard(s.atkfilter,e:GetHandlerPlayer(),LOCATION_MZONE,0,1,nil)
end
function s.spcostfilter(c,tp)
	return c:IsAbleToGraveAsCost() and c:IsAttribute(ATTRIBUTE_WATER) and Duel.GetMZoneCount(tp,c)>0
		and (c:IsFaceup() or c:IsLocation(LOCATION_HAND))
end
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.IsExistingMatchingCard(s.spcostfilter,tp,LOCATION_HAND|LOCATION_MZONE,0,1,c,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.spcostfilter,tp,LOCATION_HAND|LOCATION_MZONE,0,1,1,c,tp)
	Duel.SendtoGrave(g,REASON_COST)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,tp,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then 
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.thcostfilter(c)
	return c:IsSetCard({SET_ATLANTEAN,SET_MERMAIL}) and c:IsMonster() and c:IsAbleToGraveAsCost()
end
function s.thcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thcostfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.thcostfilter,tp,LOCATION_DECK,0,1,1,nil)
	Duel.SendtoGrave(g,REASON_COST)
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsOnField() and chkc:IsControler(1-tp) and chkc:IsAbleToHand() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsAbleToHand,tp,0,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local g=Duel.SelectTarget(tp,Card.IsAbleToHand,tp,0,LOCATION_ONFIELD,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,tp,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
	end
end