Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If this card is Normal or Special Summoned: You can discard 1 "Zoodiac" card, and if you do, draw 1 card. An Xyz Monster whose original Type is Beast-Warrior and has this card as Xyz Material gains this effect. ● If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent.
--十二獣サラブレード
--Zoodiac Thoroughblade
local s,id=GetID()
function s.initial_effect(c)
	--draw
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetTarget(s.drtg)
	e1:SetOperation(s.drop)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--get effect
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_XMATERIAL)
	e3:SetCode(EFFECT_PIERCE)
	e3:SetCondition(s.condition)
	c:RegisterEffect(e3)
end
s.listed_series={SET_ZOODIAC}
function s.filter(c)
	return c:IsSetCard(SET_ZOODIAC) and c:IsDiscardable(REASON_EFFECT)
end
function s.drtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDraw(tp,1)
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_HAND,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,1)
end
function s.drop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.DiscardHand(tp,s.filter,1,1,REASON_EFFECT|REASON_DISCARD,nil)~=0 then
		Duel.Draw(tp,1,REASON_EFFECT)
	end
end
function s.condition(e)
	return e:GetHandler():GetOriginalRace()==RACE_BEASTWARRIOR
end