--白竜の聖騎士
function c73398797.initial_effect(c)
	c:EnableReviveLimit()
	--destroy
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(73398797,0))
	e1:SetCategory(CATEGORY_DESTROY)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetCode(EVENT_BATTLE_START)
	e1:SetCondition(c73398797.descon)
	e1:SetTarget(c73398797.destg)
	e1:SetOperation(c73398797.desop)
	c:RegisterEffect(e1)
	--spsummon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(73398797,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCost(c73398797.spcost)
	e2:SetTarget(c73398797.sptg)
	e2:SetOperation(c73398797.spop)
	c:RegisterEffect(e2)
	if not c73398797.global_check then
		c73398797.global_check=true
		c73398797[0]=true
		c73398797[1]=true
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_ATTACK_ANNOUNCE)
		ge1:SetOperation(c73398797.checkop)
		Duel.RegisterEffect(ge1,0)
		local ge2=Effect.CreateEffect(c)
		ge2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge2:SetCode(EVENT_PHASE_START+PHASE_DRAW)
		ge2:SetOperation(c73398797.clear)
		Duel.RegisterEffect(ge2,0)
	end
end
function c73398797.checkop(e,tp,eg,ep,ev,re,r,rp)
	local tc=eg:GetFirst()
	if tc:IsCode(89631139) then
		c73398797[tc:GetControler()]=false
	end
end
function c73398797.clear(e,tp,eg,ep,ev,re,r,rp)
	c73398797[0]=true
	c73398797[1]=true
end
function c73398797.descon(e,tp,eg,ep,ev,re,r,rp)
	local d=Duel.GetAttackTarget()
	return e:GetHandler()==Duel.GetAttacker() and d and d:IsPosition(POS_FACEDOWN_DEFENCE)
end
function c73398797.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,Duel.GetAttackTarget(),1,0,0)
end
function c73398797.desop(e,tp,eg,ep,ev,re,r,rp)
	local d=Duel.GetAttackTarget()
	if d:IsRelateToBattle() then
		Duel.Destroy(d,REASON_EFFECT)
	end
end
function c73398797.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return c73398797[tp] and e:GetHandler():IsReleaseable()end
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_ATTACK_ANNOUNCE)
	e1:SetProperty(EFFECT_FLAG_OATH)
	e1:SetTarget(aux.TargetBoolFunction(Card.IsCode,89631139))
	e1:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e1:SetReset(RESET_PHASE+RESET_END)
	Duel.RegisterEffect(e1,tp)
	Duel.Release(e:GetHandler(),REASON_COST)
end
function c73398797.spfilter(c,e,tp)
	return c:IsCode(89631139) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function c73398797.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(c73398797.spfilter,tp,LOCATION_HAND+LOCATION_DECK,0,1,nil,e,tp) end
	local sg=Duel.GetMatchingGroup(Card.IsDestructable,tp,0,LOCATION_MZONE,nil)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND+LOCATION_DECK)
end
function c73398797.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)==0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,c73398797.spfilter,tp,LOCATION_HAND+LOCATION_DECK,0,1,1,nil,e,tp)
	Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
end
