Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Tribute Summon this card by Tributing 1 monster. This card is unaffected by the activated effects of Special Summoned monsters if it was Normal Summoned/Set. If this card is Normal or Special Summoned: You can target 1 Beast, Beast-Warrior, or Winged Beast monster in your GY; add it to your hand, and if you do, this card loses 700 ATK. Once per turn, during your End Phase: You can make this card gain 700 ATK.
--百戦王 ベヒーモス
--Behemoth the King of a Hundred Battles
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--Normal Summon/Set this card with 1 tribute
	local e1a=aux.AddNormalSummonProcedure(c,true,true,1,1,SUMMON_TYPE_TRIBUTE,aux.Stringid(id,0))
	local e1b=aux.AddNormalSetProcedure(c,true,true,1,1,SUMMON_TYPE_TRIBUTE,aux.Stringid(id,0))
	--Add 1 Beast, Beast-Warrior, or Winged Beast monster to the hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_ATKCHANGE)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
	local e3=e2:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	--Unaffected by the effects of Special Summoned monsters
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e4:SetCode(EFFECT_IMMUNE_EFFECT)
	e4:SetRange(LOCATION_MZONE)
	e4:SetCondition(function(e) return e:GetHandler():IsNormalSummoned() end)
	e4:SetValue(s.imnval)
	c:RegisterEffect(e4)
	--Gain 700 ATK
	local e5=Effect.CreateEffect(c)
	e5:SetDescription(aux.Stringid(id,2))
	e5:SetCategory(CATEGORY_ATKCHANGE)
	e5:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e5:SetCode(EVENT_PHASE+PHASE_END)
	e5:SetRange(LOCATION_MZONE)
	e5:SetCountLimit(1)
	e5:SetCondition(function(e,tp) return Duel.IsTurnPlayer(tp) end)
	e5:SetOperation(s.atkop)
	c:RegisterEffect(e5)
end
function s.thfilter(c)
	return c:IsRace(RACES_BEAST_BWARRIOR_WINGB) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.thfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.thfilter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectTarget(tp,s.thfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_ATKCHANGE,e:GetHandler(),1,tp,-700)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and Duel.SendtoHand(tc,nil,REASON_EFFECT)>0
		and tc:IsLocation(LOCATION_HAND) then
		Duel.ConfirmCards(1-tp,tc)
		local c=e:GetHandler()
		if c:IsFacedown() or not c:IsRelateToEffect(e) then return end
		c:UpdateAttack(-700)
	end
end
function s.imnval(e,te)
	return te:IsMonsterEffect() and te:IsActivated() and te:GetHandler():IsSpecialSummoned()
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsFaceup() and c:IsRelateToEffect(e) then
		c:UpdateAttack(700)
	end
end