Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When an opponent's monster declares an attack: You can discard 1 Spell/Trap, then target 1 Divine-Beast monster in your GY; Special Summon it in Defense Position, then change the attack target to it. During the End Phase, if you control a Divine-Beast monster: You can destroy all face-up cards your opponent controls that activated their effects on the field this turn. You can only use each effect of "Ultimate Divine-Beast" once per turn.
--絶対なる幻神獣
--Ultimate Divine-Beast
--Scripted by Larry126
local s,id=GetID()
function s.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 e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_ATTACK_ANNOUNCE)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.atkcon)
	e2:SetCost(s.atkcost)
	e2:SetTarget(s.atktg)
	e2:SetOperation(s.atkop)
	c:RegisterEffect(e2)
	--Destroy
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_PHASE+PHASE_END)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.descon)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	--Check for activation on field
	aux.GlobalCheck(s,function()
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_CHAINING)
		ge1:SetCondition(s.regcon)
		ge1:SetOperation(s.regop1)
		Duel.RegisterEffect(ge1,0)
		local ge2=Effect.CreateEffect(c)
		ge2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge2:SetCode(EVENT_CHAIN_NEGATED)
		ge2:SetCondition(s.regcon)
		ge2:SetOperation(s.regop2)
		Duel.RegisterEffect(ge2,0)
	end)
end
function s.regcon(e,tp,eg,ep,ev,re,r,rp)
	return re:GetHandler():IsOnField()
end
function s.regop1(e,tp,eg,ep,ev,re,r,rp)
	re:GetHandler():RegisterFlagEffect(id,RESETS_STANDARD_PHASE_END,0,1)
end
function s.regop2(e,tp,eg,ep,ev,re,r,rp)
	local ct=re:GetHandler():GetFlagEffect(id)
	re:GetHandler():ResetFlagEffect(id)
	for i=1,ct-1 do
		re:GetHandler():RegisterFlagEffect(id,RESETS_STANDARD_PHASE_END,0,1)
	end
end
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetAttacker():IsControler(1-tp)
end
function s.cfilter(c)
	return c:IsSpellTrap() and c:IsDiscardable()
end
function s.atkcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_HAND,0,1,nil) end
	Duel.DiscardHand(tp,s.cfilter,1,1,REASON_COST|REASON_DISCARD)
end
function s.spfilter(c,e,tp)
	return c:IsRace(RACE_DIVINE) and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.spfilter(chkc,e,tp) end
	if chk==0 then return Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP_DEFENSE)>0
		and Duel.GetAttacker():CanAttack() and not Duel.GetAttacker():IsImmuneToEffect(e) then
		Duel.BreakEffect()
		Duel.ChangeAttackTarget(tc)
	end
end
function s.desfilter(c)
	return c:GetFlagEffect(id)>0
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsRace,RACE_DIVINE),tp,LOCATION_MZONE,0,1,nil)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.desfilter,tp,0,LOCATION_ONFIELD,1,nil) end
	local g=Duel.GetMatchingGroup(s.desfilter,tp,0,LOCATION_ONFIELD,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,#g,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local g=Duel.GetMatchingGroup(s.desfilter,tp,0,LOCATION_ONFIELD,nil)
	Duel.Destroy(g,REASON_EFFECT)
end