--ウォーターハザード
function c49669730.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(49669730,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetCountLimit(1)
	e1:SetRange(LOCATION_SZONE)
	e1:SetCondition(c49669730.condition)
	e1:SetTarget(c49669730.target)
	e1:SetOperation(c49669730.operation)
	c:RegisterEffect(e1)
end
function c49669730.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetFieldGroupCount(tp,LOCATION_MZONE,0)==0
end
function c49669730.filter(c,e,sp)
	return c:IsAttribute(ATTRIBUTE_WATER) and c:IsLevelBelow(4) and c:IsCanBeSpecialSummoned(e,0,sp,false,false)
end
function c49669730.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(c49669730.filter,tp,LOCATION_HAND,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND)
end
function c49669730.operation(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	if Duel.GetFieldGroupCount(tp,LOCATION_MZONE,0)>0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,c49669730.filter,tp,LOCATION_HAND,0,1,1,nil,e,tp)
	if g:GetCount()>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end
