Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Any battle damage a player takes is halved. If you control a LIGHT Beast monster or a Level 7 or 8 Dragon Synchro Monster: You can draw 1 card. You can only use this effect of "Fairy Tale Prologue: Journey's Dawn" once per turn. During your Standby Phase: You can send this card from the Field Zone to the GY; place 1 Field Spell from your hand or Deck face-up in your Field Zone, except "Fairy Tale Prologue: Journey's Dawn".
--Ｆａｉｒｙ Ｔａｌｅ 序章 旅立ちの暁光
--Fairy Tale Prologue: Journey's Dawn
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_ACTIVATE)
	e0:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e0)
	--Any battle damage a player takes is halved
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCode(EFFECT_CHANGE_BATTLE_DAMAGE)
	e1:SetRange(LOCATION_FZONE)
	e1:SetTargetRange(1,1)
	e1:SetValue(HALF_DAMAGE)
	c:RegisterEffect(e1)
	--Draw 1 card
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_DRAW)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e2:SetRange(LOCATION_FZONE)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.drcon)
	e2:SetTarget(s.drtg)
	e2:SetOperation(s.drop)
	c:RegisterEffect(e2)
	--Place 1 Field Spell from your hand or Deck face-up in your Field Zone, except "Fairy Tale Prologue: Journey's Dawn"
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_PHASE|PHASE_STANDBY)
	e3:SetRange(LOCATION_FZONE)
	e3:SetCountLimit(1)
	e3:SetCondition(function(e,tp) return Duel.IsTurnPlayer(tp) end)
	e3:SetCost(Cost.SelfToGrave)
	e3:SetTarget(s.pltg)
	e3:SetOperation(s.plop)
	c:RegisterEffect(e3)
end
s.listed_names={id}
function s.drconfilter(c)
	return ((c:IsAttribute(ATTRIBUTE_LIGHT) and c:IsRace(RACE_BEAST))
		or (c:IsLevel(7,8) and c:IsRace(RACE_DRAGON) and c:IsType(TYPE_SYNCHRO)))
		and c:IsFaceup()
end
function s.drcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.drconfilter,tp,LOCATION_MZONE,0,1,nil)
end
function s.drtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDraw(tp,1) end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(1)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,1)
end
function s.drop(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	Duel.Draw(p,d,REASON_EFFECT)
end
function s.plfilter(c,tp)
	return c:IsFieldSpell() and not c:IsForbidden() and c:CheckUniqueOnField(tp) and not c:IsCode(id)
end
function s.pltg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.plfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,nil,tp) end
end
function s.plop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOFIELD)
	local sc=Duel.SelectMatchingCard(tp,s.plfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,1,nil,tp):GetFirst()
	if not sc then return end
	local fc=Duel.GetFieldCard(tp,LOCATION_FZONE,0)
	if fc then
		Duel.SendtoGrave(fc,REASON_RULE)
		Duel.BreakEffect()
	end
	Duel.MoveToField(sc,tp,tp,LOCATION_FZONE,POS_FACEUP,true)
end