--極氷獣ブリザード・ウルフ
--Glacial Beast Blizzard Wolf
--Logical Nonsense
--Substitute ID
local s,id=GetID()
function s.initial_effect(c)
	--Negate attack, special summon 1 level 4 or lower WATER monster from hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.negtg)
	e1:SetOperation(s.negop)
	c:RegisterEffect(e1)
	--At the start of opponent's battle phase, special summon this card from GY
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_PHASE|PHASE_BATTLE_START)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
	--Specifically lists itself
s.listed_names={id}
	--Check for level 4 or lower WATER (except for this card's name)
function s.filter(c,e,tp)
	return c:IsAttribute(ATTRIBUTE_WATER) and c:IsLevelBelow(4) and not c:IsCode(id) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
	--Activation legality
function s.negtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_HAND,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND)
end
	--Special summon 1 level 4 or lower WATER monster from hand
function s.negop(e,tp,eg,ep,ev,re,r,rp)
	if not Duel.NegateAttack() or Duel.GetLocationCount(tp,LOCATION_MZONE)<1 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_HAND,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
end
	--Start of opponent's battle phase and player controls no monsters
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(1-tp) and Duel.GetFieldGroupCount(tp,LOCATION_MZONE,0)==0
end
	--Activation legality
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
	--Special summon this card in attack position, but banish it if it leaves the field 
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP_ATTACK)>0 then
		local e1=Effect.CreateEffect(c)
		e1:SetDescription(3300)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_CLIENT_HINT)
		e1:SetCode(EFFECT_LEAVE_FIELD_REDIRECT)
		e1:SetValue(LOCATION_REMOVED)
		e1:SetReset(RESET_EVENT|RESETS_REDIRECT)
		c:RegisterEffect(e1,true)
	end
end