Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
1 Tuner + 1+ non-Tuner "Mist Valley" monsters Once per turn (Quick Effect): You can target 1 other card you control; return that target to the hand, and if you do, this card gains 500 ATK until the end of this turn.
--霞の谷の雷神鬼
--Mist Valley Thunder Lord
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Synchro Summon procedure
	Synchro.AddProcedure(c,nil,1,1,Synchro.NonTunerEx(Card.IsSetCard,SET_MIST_VALLEY),1,99)
	--Return to hand and increase ATK
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND+CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1)
	e1:SetHintTiming(TIMING_DAMAGE_STEP)
	e1:SetCondition(aux.StatChangeDamageStepCondition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
s.listed_series={SET_MIST_VALLEY}
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local c=e:GetHandler()
	if chkc then return chkc:IsOnField() and chkc:IsControler(tp) and chkc:IsAbleToHand() and chkc~=c end
	if chk==0 then return Duel.IsExistingTarget(Card.IsAbleToHand,tp,LOCATION_ONFIELD,0,1,c) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local g=Duel.SelectTarget(tp,Card.IsAbleToHand,tp,LOCATION_ONFIELD,0,1,1,c)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,0,0)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if not tc:IsRelateToEffect(e) or tc:IsControler(1-tp) or Duel.SendtoHand(tc,nil,REASON_EFFECT)==0 or not tc:IsLocation(LOCATION_HAND) then return end
	local c=e:GetHandler()
	if c:IsFacedown() or not c:IsRelateToEffect(e) then return end
	--Increase ATK
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetValue(500)
	e1:SetReset(RESETS_STANDARD_DISABLE_PHASE_END)
	c:RegisterEffect(e1)
end