Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 1 "Silent Swordsman" monster you control; that monster you control gains 1500 ATK and DEF, and if it does, until the end of this turn, it is unaffected by your opponent's card effects. This card's activation and effect cannot be negated. You can banish this card from your Graveyard; add 1 "Silent Swordsman" monster from your Deck to your hand.
--沈黙の剣
--Silent Sword Slash
local s,id=GetID()
function s.initial_effect(c)
	--Targeted "Silent Swordsman" gains 1500 ATK/DEF, also unaffected by opponent's card effects
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE+CATEGORY_DEFCHANGE)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_CANNOT_INACTIVATE+EFFECT_FLAG_CANNOT_NEGATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(TIMING_DAMAGE_STEP)
	e1:SetCondition(aux.StatChangeDamageStepCondition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--Add 1 "Silent Swordsman" monster from deck
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_SILENT_SWORDSMAN}
function s.filter(c)
	return c:IsSetCard(SET_SILENT_SWORDSMAN) and c:IsFaceup()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:IsControler(tp) then
		--Gains 1500 ATK/DEF
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		e1:SetValue(1500)
		tc:RegisterEffect(e1)
		local e2=e1:Clone()
		e2:SetCode(EFFECT_UPDATE_DEFENSE)
		tc:RegisterEffect(e2)
		--Unaffected by opponent's card effects
		local e3=Effect.CreateEffect(c)
		e3:SetDescription(3110)
		e3:SetType(EFFECT_TYPE_SINGLE)
		e3:SetCode(EFFECT_IMMUNE_EFFECT)
		e3:SetProperty(EFFECT_FLAG_SINGLE_RANGE+EFFECT_FLAG_CLIENT_HINT)
		e3:SetRange(LOCATION_MZONE)
		e3:SetValue(s.efilter)
		e3:SetReset(RESETS_STANDARD_PHASE_END)
		e3:SetOwnerPlayer(tp)
		tc:RegisterEffect(e3)
	end
end
function s.efilter(e,re)
	return e:GetOwnerPlayer()~=re:GetOwnerPlayer()
end
function s.thfilter(c)
	return c:IsSetCard(SET_SILENT_SWORDSMAN) and c:IsMonster() and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end