Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Normal Summoned/Set. Must first be Special Summoned by its own effect. You can reveal this card in your hand; draw 1 card, and if you do, show it, then Special Summon this card if the drawn card is a "Flower Cardian" monster. Otherwise, send it and this card to the Graveyard. During either player's Damage Step, when your "Flower Cardian" monster battles an opponent's monster: You can discard this card; your battling monster gains 1000 ATK until the end of this turn.
--花札衛－桜に幕－
--Flower Cardian Cherry Blossom with Curtain
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Draw 1 card, and if you do, show it, then Special Summon this card if the drawn card is a "Flower Cardian" monster
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DRAW+CATEGORY_SPECIAL_SUMMON+CATEGORY_TOGRAVE)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_HAND)
	e1:SetCost(Cost.SelfReveal)
	e1:SetTarget(s.drtg)
	e1:SetOperation(s.drop)
	c:RegisterEffect(e1)
	--Your battling "Flower Cardian" monster gains 1000 ATK until the end of this turn
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_ATKCHANGE)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetRange(LOCATION_HAND)
	e2:SetHintTiming(TIMING_DAMAGE_STEP)
	e2:SetCondition(s.atkcon)
	e2:SetCost(Cost.SelfDiscard)
	e2:SetTarget(s.atktg)
	e2:SetOperation(s.atkop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_FLOWER_CARDIAN}
function s.drtg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.IsPlayerCanDraw(tp,1) and Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,true,false) end
	Duel.SetTargetPlayer(tp)
	Duel.SetTargetParam(1)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,1)
	Duel.SetPossibleOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,tp,0)
	Duel.SetPossibleOperationInfo(0,CATEGORY_TOGRAVE,c,2,tp,LOCATION_HAND)
end
function s.drop(e,tp,eg,ep,ev,re,r,rp)
	local p,d=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER,CHAININFO_TARGET_PARAM)
	if Duel.Draw(p,d,REASON_EFFECT)>0 then
		local c=e:GetHandler()
		local dc=Duel.GetOperatedGroup():GetFirst()
		Duel.ConfirmCards(1-tp,dc)
		if dc:IsSetCard(SET_FLOWER_CARDIAN) and dc:IsMonster() then
			if c:IsRelateToEffect(e) then
				Duel.BreakEffect()
				if Duel.SpecialSummon(c,0,tp,tp,true,false,POS_FACEUP)>0 then
					c:CompleteProcedure()
				end
			end
		else
			local g=Group.FromCards(dc)
			if c:IsRelateToEffect(e) then
				g:AddCard(c)
			end
			Duel.BreakEffect()
			Duel.SendtoGrave(g,REASON_EFFECT)
		end
		Duel.ShuffleHand(tp)
	end
end
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	if not aux.StatChangeDamageStepCondition() then return false end
	local bc1,bc2=Duel.GetBattleMonster(tp)
	return bc1 and bc2 and bc1:IsSetCard(SET_FLOWER_CARDIAN)
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local bc=Duel.GetBattleMonster(tp)
	e:SetLabelObject(bc)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local bc=e:GetLabelObject()
	if bc:IsRelateToBattle() and bc:IsFaceup() and bc:IsControler(tp) then
		--Your battling monster gains 1000 ATK until the end of this turn
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(1000)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		bc:RegisterEffect(e1)
	end
end