Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Level 4 Warrior monsters If this card battles an opponent's monster, during damage calculation: You can detach 2 materials from this card; double this card's ATK during damage calculation only. Once per turn, during the Main Phase (Quick Effect): You can target 1 other face-up monster you control; equip this card you control to it as an Equip Spell that gives it 2000 ATK/DEF. You can banish this card from your GY; shuffle 3 Warrior monsters from your GY into the Deck.
--Ｈ－Ｃ マグナム・エクスカリバー
--Heroic Champion - Magnum Excalibur
--scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Xyz Summon procedure: 2 Level 4 Warrior monsters
	Xyz.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsRace,RACE_WARRIOR),4,2)
	--Double this card's ATK during damage calculation only
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetCode(EVENT_PRE_DAMAGE_CALCULATE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,0,EFFECT_COUNT_CODE_CHAIN)
	e1:SetCondition(s.atkcon)
	e1:SetCost(Cost.DetachFromSelf(2))
	e1:SetTarget(s.atktg)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
	--Equip this card to another monster you control
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_EQUIP)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1)
	e2:SetHintTiming(0,TIMING_MAIN_END|TIMINGS_CHECK_MONSTER)
	e2:SetCondition(function() return Duel.IsMainPhase() end)
	e2:SetTarget(s.eqtg)
	e2:SetOperation(s.eqop)
	c:RegisterEffect(e2)
	--Shuffle 3 Warrior monsters from your GY into the Deck.
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetCategory(CATEGORY_TODECK)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetCost(Cost.SelfBanish)
	e3:SetTarget(s.tdtg)
	e3:SetOperation(s.tdop)
	c:RegisterEffect(e3)
end
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	local bc=e:GetHandler():GetBattleTarget()
	return bc and bc:IsControler(1-tp)
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local c=e:GetHandler()
	Duel.SetOperationInfo(0,CATEGORY_ATKCHANGE,c,1,tp,c:GetAttack())
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsFaceup() and c:IsRelateToEffect(e) then
		--Double this card's ATK during damage calculation only
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_SET_ATTACK_FINAL)
		e1:SetValue(c:GetAttack()*2)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD_DISABLE|RESET_PHASE|PHASE_DAMAGE_CAL)
		c:RegisterEffect(e1)
	end
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local c=e:GetHandler()
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsFaceup() and chkc~=c end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.IsExistingTarget(Card.IsFaceup,tp,LOCATION_MZONE,0,1,c) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	Duel.SelectTarget(tp,Card.IsFaceup,tp,LOCATION_MZONE,0,1,1,c)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,c,1,tp,0)
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) then return end
	local tc=Duel.GetFirstTarget()
	if not (tc:IsRelateToEffect(e) and tc:IsFaceup() and Duel.GetLocationCount(tp,LOCATION_SZONE)>0) then
		return Duel.SendtoGrave(c,REASON_RULE,PLAYER_NONE,PLAYER_NONE)
	else
		if not Duel.Equip(tp,c,tc) then return end
		--Equip limit
		local e0=Effect.CreateEffect(c)
		e0:SetType(EFFECT_TYPE_SINGLE)
		e0:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e0:SetCode(EFFECT_EQUIP_LIMIT)
		e0:SetValue(function(e,c) return c==tc end)
		e0:SetReset(RESET_EVENT|RESETS_STANDARD)
		c:RegisterEffect(e0)
		--The equipped monster gains 2000 ATK/DEF
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_EQUIP)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(2000)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		c:RegisterEffect(e1)
		local e2=e1:Clone()
		e2:SetCode(EFFECT_UPDATE_DEFENSE)
		c:RegisterEffect(e2)
	end
end
function s.tdfilter(c)
	return c:IsRace(RACE_WARRIOR) and c:IsAbleToDeck()
end
function s.tdtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.tdfilter,tp,LOCATION_GRAVE,0,3,e:GetHandler()) end
	Duel.SetOperationInfo(0,CATEGORY_TODECK,nil,3,tp,LOCATION_GRAVE)
end
function s.tdop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectMatchingCard(tp,s.tdfilter,tp,LOCATION_GRAVE,0,3,3,nil)
	if #g==3 then
		Duel.HintSelection(g)
		Duel.SendtoDeck(g,nil,SEQ_DECKSHUFFLE,REASON_EFFECT)
	end
end