Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Special Summon this card (from your hand) to your Main Monster Zone, adjacent to a "Scareclaw" monster you control or in its column. You can only Special Summon "Scareclaw Reichheart" once per turn this way. If this card is Normal or Special Summoned: You can add 1 "Scareclaw" Spell/Trap from your Deck to your hand, then, if 3 or more Defense Position monsters are on the field, you can draw 1 card. You can only use this effect of "Scareclaw Reichheart" once per turn.
--スケアクロー・トライヒハート
--Scareclaw Reichheart
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon procedure
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetValue(s.hspval)
	c:RegisterEffect(e1)
	--Search
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH+CATEGORY_DRAW)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetCountLimit(1,{id,1})
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
	local e3=e2:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
end
s.listed_series={SET_SCARECLAW}
s.sclawfilter=aux.FaceupFilter(Card.IsSetCard,SET_SCARECLAW)
function s.hspval(e,c)
	local zone=0
	local left_right=0
	local tp=c:GetControler()
	local lg=Duel.GetMatchingGroup(s.sclawfilter,tp,LOCATION_MZONE,0,nil)
	for tc in lg:Iter() do
		left_right=tc:IsInMainMZone() and 1 or 0
		zone=(zone|tc:GetColumnZone(LOCATION_MZONE,left_right,left_right,tp))
	end
	return 0,zone&ZONES_MMZ
end
function s.thfilter(c)
	return c:IsSetCard(SET_SCARECLAW) and c:IsSpellTrap() 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)
	Duel.SetPossibleOperationInfo(0,CATEGORY_DRAW,nil,1,tp,1)
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<1 or Duel.SendtoHand(g,nil,REASON_EFFECT)<1 then return end
	Duel.ConfirmCards(1-tp,g)
	Duel.ShuffleDeck(tp)
	if Duel.GetMatchingGroupCount(Card.IsDefensePos,tp,LOCATION_MZONE,LOCATION_MZONE,nil)>=3
		and Duel.IsPlayerCanDraw(tp,1) and Duel.SelectYesNo(tp,aux.Stringid(id,1)) then
		Duel.BreakEffect()
		Duel.Draw(tp,1,REASON_EFFECT)
	end
end