Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Special Summon this card (from your hand or GY) by banishing 1 monster you control equipped with a "Dragunity" card(s). When this card is Normal or Special Summoned: You can target 1 Dragon monster in your GY, except "Dragunity Arma Leyvaten"; equip that target to this card. When this card you control is sent to your GY by your opponent's card effect: You can target 1 of the monsters that were equipped to this card when it was sent to the GY; Special Summon that monster.
--ドラグニティアームズ－レヴァテイン
--Dragunity Arma Leyvaten
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND|LOCATION_GRAVE)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--equip
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_LEAVE_GRAVE+CATEGORY_EQUIP)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e2:SetTarget(s.eqtg)
	e2:SetOperation(s.eqop)
	c:RegisterEffect(e2)
	aux.AddEREquipLimit(c,nil,s.eqval,Card.EquipByEffectAndLimitRegister,e2)
	local e3=e2:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	aux.AddEREquipLimit(c,nil,s.eqval,Card.EquipByEffectAndLimitRegister,e3)
	--special summon
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e4:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e4:SetCode(EVENT_LEAVE_FIELD_P)
	e4:SetOperation(s.eqcheck)
	c:RegisterEffect(e4)
	local e5=Effect.CreateEffect(c)
	e5:SetDescription(aux.Stringid(id,1))
	e5:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e5:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e5:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
	e5:SetCode(EVENT_TO_GRAVE)
	e5:SetCondition(s.spcon2)
	e5:SetTarget(s.sptg2)
	e5:SetOperation(s.spop2)
	e5:SetLabelObject(e4)
	c:RegisterEffect(e5)
end
s.listed_series={SET_DRAGUNITY}
s.listed_names={id}
function s.eqval(ec,c,tp)
	return ec:IsControler(tp) and not ec:IsCode(id) and ec:IsRace(RACE_DRAGON)
end
function s.spfilter(c,tp)
	return c:GetEquipGroup():IsExists(Card.IsSetCard,1,nil,SET_DRAGUNITY) and c:IsAbleToRemoveAsCost()
		and (Duel.GetLocationCount(tp,LOCATION_MZONE)>0 or c:GetSequence()<5)
end
function s.spcon(e,c)
	if c==nil then return true end
	local tp=e:GetHandlerPlayer()
	local eff={c:GetCardEffect(EFFECT_NECRO_VALLEY)}
	for _,te in ipairs(eff) do
		local op=te:GetOperation()
		if not op or op(e,c) then return false end
	end
	local rg=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_MZONE,0,nil,tp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	return ft>-1 and #rg>0 and aux.SelectUnselectGroup(rg,e,tp,1,1,nil,0)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,c)
	local c=e:GetHandler()
	local g=nil
	local rg=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_MZONE,0,nil,tp)
	local g=aux.SelectUnselectGroup(rg,e,tp,1,1,nil,1,tp,HINTMSG_REMOVE,nil,nil,true)
	if #g>0 then
		g:KeepAlive()
		e:SetLabelObject(g)
		return true
	end
	return false
end
function s.spop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	if not g then return end
	Duel.Remove(g,POS_FACEUP,REASON_COST)
	g:DeleteGroup()
end
function s.filter(c)
	return c:GetCode()~=id and c:IsRace(RACE_DRAGON) and not c:IsForbidden()
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_LEAVE_GRAVE,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,g,1,0,0)
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		c:EquipByEffectAndLimitRegister(e,tp,tc)
	end
end
function s.eqcheck(e,tp,eg,ep,ev,re,r,rp)
	if e:GetLabelObject() then e:GetLabelObject():DeleteGroup() end
	local g=e:GetHandler():GetEquipGroup()
	g:KeepAlive()
	e:SetLabelObject(g)
end
function s.spcon2(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsReason(REASON_EFFECT) and rp~=tp and c:GetPreviousLocation()==LOCATION_MZONE
end
function s.spfilter2(c,e,tp)
	return c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg2(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	local g=e:GetLabelObject():GetLabelObject()
	if chkc then return g:IsContains(chkc) and s.spfilter2(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and g:IsExists(s.spfilter2,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local sg=g:FilterSelect(tp,s.spfilter2,1,1,nil,e,tp)
	Duel.SetTargetCard(sg)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,sg,1,0,0)
end
function s.spop2(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end