Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
"Blue-Eyes White Dragon" + "Blue-Eyes White Dragon" + "Blue-Eyes White Dragon" At the end of the Damage Step, if this is the only face-up card you control, and this Fusion Summoned card attacked: You can send 1 "Blue-Eyes" Fusion Monster from your Extra Deck to the Graveyard; this card can attack again in a row. You can use this effect of "Neo Blue-Eyes Ultimate Dragon" up to twice per turn. During either player's turn, when a card or effect is activated that targets a "Blue-Eyes" monster(s) you control: You can banish this card from your Graveyard; negate the activation, and if you do, destroy that card.
--真青眼の究極竜
--Neo Blue-Eyes Ultimate Dragon
local s,id=GetID()
function s.initial_effect(c)
	--fusion material
	c:EnableReviveLimit()
	Fusion.AddProcMixN(c,true,true,CARD_BLUEEYES_W_DRAGON,3)
	--chain attack
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_DAMAGE_STEP_END)
	e1:SetCountLimit(2,id)
	e1:SetCondition(s.atcon)
	e1:SetCost(s.atcost)
	e1:SetOperation(s.atop)
	c:RegisterEffect(e1)
	--Negate
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_NEGATE+CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCode(EVENT_CHAINING)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DAMAGE_CAL)
	e2:SetCondition(s.condition)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.target)
	e2:SetOperation(s.operation)
	c:RegisterEffect(e2)
end
s.listed_series={SET_BLUE_EYES}
s.listed_names={CARD_BLUEEYES_W_DRAGON}
s.material_setcode=SET_BLUE_EYES
function s.costfilter(c)
	return c:IsSetCard(SET_BLUE_EYES) and c:IsType(TYPE_FUSION) and c:IsAbleToGraveAsCost()
end
function s.atcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsFusionSummoned()
		and Duel.GetAttacker()==c and c:CanChainAttack(0)
		and not Duel.IsExistingMatchingCard(Card.IsFaceup,tp,LOCATION_ONFIELD,0,1,c)
end
function s.atcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.costfilter,tp,LOCATION_EXTRA,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.costfilter,tp,LOCATION_EXTRA,0,1,1,nil)
	Duel.SendtoGrave(g,REASON_COST)
end
function s.atop(e,tp,eg,ep,ev,re,r,rp)
	Duel.ChainAttack()
end
function s.filter(c,tp)
	return c:IsControler(tp) and c:IsLocation(LOCATION_MZONE) and c:IsFaceup() and c:IsSetCard(SET_BLUE_EYES)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	if not re:IsHasProperty(EFFECT_FLAG_CARD_TARGET) then return false end
	local g=Duel.GetChainInfo(ev,CHAININFO_TARGET_CARDS)
	return g and g:IsExists(s.filter,1,nil,tp)
		and Duel.IsChainNegatable(ev)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_NEGATE,eg,1,0,0)
	if re:GetHandler():IsDestructable() and re:GetHandler():IsRelateToEffect(re) then
		Duel.SetOperationInfo(0,CATEGORY_DESTROY,eg,1,0,0)
	end
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	if Duel.NegateActivation(ev) and re:GetHandler():IsRelateToEffect(re) then
		Duel.Destroy(eg,REASON_EFFECT)
	end
end