Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If a monster(s) with 2500 original ATK or DEF is Normal or Special Summoned to your field (except during the Damage Step): You can Special Summon this card from your hand in Defense Position. If this card is Special Summoned: You can target 1 "Dark Magician" or "Blue-Eyes White Dragon" in your Monster Zone; it gains 2500 ATK/DEF until the end of this turn. You can only use each effect of "Chronicle Magician" once per turn.
--クロニクル・マジシャン
--Chronicle Magician
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon
	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:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,{id,1})
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--Increase ATK/DEF
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_ATKCHANGE)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	e3:SetCountLimit(1,{id,2})
	e3:SetTarget(s.atktg)
	e3:SetOperation(s.atkop)
	c:RegisterEffect(e3)
end
s.listed_names={CARD_DARK_MAGICIAN,CARD_BLUEEYES_W_DRAGON}
function s.spcfilter(c,tp)
	return c:IsFaceup() and c:IsControler(tp) and (c:GetBaseAttack()==2500 or c:GetBaseDefense()==2500)
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.spcfilter,1,nil,tp)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP_DEFENSE)
	end
end
function s.atkfilter(c)
	return c:IsCode(CARD_DARK_MAGICIAN,CARD_BLUEEYES_W_DRAGON) and c:IsFaceup()
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and s.atkfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.atkfilter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATKDEF)
	Duel.SelectTarget(tp,s.atkfilter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsFaceup() then
		--Increase ATK/DEF
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		e1:SetValue(2500)
		tc:RegisterEffect(e1)
		local e2=e1:Clone()
		e2:SetCode(EFFECT_UPDATE_DEFENSE)
		tc:RegisterEffect(e2)
	end
end