--潜海奇襲Ⅱ
function c58203736.initial_effect(c)
	aux.AddCodeList(c,22702055)
	--code
	aux.EnableChangeCode(c,22702055,LOCATION_SZONE+LOCATION_GRAVE)
	--Activate
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_ACTIVATE)
	e0:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e0)
	--cannot be target
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_BE_EFFECT_TARGET)
	e1:SetRange(LOCATION_SZONE)
	e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e1:SetTargetRange(LOCATION_MZONE,0)
	e1:SetTarget(c58203736.eftg)
	e1:SetValue(c58203736.efilter)
	c:RegisterEffect(e1)
	--SpecialSummon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(58203736,0))
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_PHASE+PHASE_BATTLE_START)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1,58203736)
	e2:SetTarget(c58203736.sptg)
	e2:SetOperation(c58203736.spop)
	c:RegisterEffect(e2)
end
function c58203736.eftg(e,c)
	return c:IsFaceup() and c:IsAttribute(ATTRIBUTE_WATER)
end
function c58203736.efilter(e,re,rp)
	local rc=re:GetHandler()
	return re:IsActiveType(TYPE_MONSTER) and rc:IsControler(1-e:GetHandlerPlayer()) and not rc:IsAttribute(ATTRIBUTE_WATER)
end
function c58203736.spfilter(c,e,tp)
	return (aux.IsCodeListed(c,22702055) or (c:IsType(TYPE_NORMAL) and c:IsAttribute(ATTRIBUTE_WATER)))
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)
end
function c58203736.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(c58203736.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)
end
function c58203736.spop(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(c58203736.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_DEFENSE)~=0 then
		local fid=c:GetFieldID()
		tc:RegisterFlagEffect(58203736,RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END,0,1,fid)
		--destroy
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e1:SetCode(EVENT_PHASE+PHASE_BATTLE)
		e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
		e1:SetCountLimit(1)
		e1:SetLabel(fid)
		e1:SetLabelObject(tc)
		e1:SetCondition(c58203736.descon)
		e1:SetOperation(c58203736.desop)
		e1:SetReset(RESET_PHASE+PHASE_END)
		Duel.RegisterEffect(e1,tp)
	end
end
function c58203736.descon(e,tp,eg,ep,ev,re,r,rp)
	local tc=e:GetLabelObject()
	return tc:GetFlagEffectLabel(58203736)==e:GetLabel()
end
function c58203736.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=e:GetLabelObject()
	Duel.Destroy(tc,REASON_EFFECT)
end
