Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control an "Exosister" monster: You can Special Summon this card from your hand, then if you control "Exosister Stella", you gain 800 LP. If your opponent moves a card(s) out of either GY (except during the Damage Step): You can Special Summon from your Extra Deck, 1 "Exosister" Xyz Monster using this face-up card you control as material. (This is treated as an Xyz Summon.) You can only use each effect of "Exosister Elis" once per turn.
--エクソシスター・エリス
--Exosister Elis
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon self
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_RECOVER)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.hspcon)
	e1:SetTarget(s.hsptg)
	e1:SetOperation(s.hspop)
	c:RegisterEffect(e1)
	--Special Summon Xyz
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetProperty(EFFECT_FLAG_DELAY)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_LEAVE_GRAVE)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(function(_,tp,_,_,_,_,_,rp)return rp==1-tp end)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
s.listed_names={43863925}
s.listed_series={SET_EXOSISTER}
function s.hspcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsSetCard,SET_EXOSISTER),tp,LOCATION_MZONE,0,1,nil)
end
function s.hsptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and c:IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.hspop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)>0 
		and Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsCode,43863925),tp,LOCATION_ONFIELD,0,1,nil) then
		Duel.BreakEffect()
		Duel.Recover(tp,800,REASON_EFFECT)
	end
end
function s.spfilter(c,e,tp,mc)
	return c:IsType(TYPE_XYZ,c,SUMMON_TYPE_XYZ,tp) and c:IsSetCard(SET_EXOSISTER) and mc:IsCanBeXyzMaterial(c,tp)
		and Duel.GetLocationCountFromEx(tp,tp,mc,c)>0 and c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_XYZ,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chk==0 then
		local c=e:GetHandler()
		local pg=aux.GetMustBeMaterialGroup(tp,Group.FromCards(c),tp,nil,nil,REASON_XYZ)
		return (#pg<=0 or (#pg==1 and pg:IsContains(c))) and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_EXTRA,0,1,nil,e,tp,c)
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsFacedown() or not c:IsRelateToEffect(e) or c:IsControler(1-tp) or c:IsImmuneToEffect(e) then return end
	local pg=aux.GetMustBeMaterialGroup(tp,Group.FromCards(c),tp,nil,nil,REASON_XYZ)
	if #pg>1 or (#pg==1 and not pg:IsContains(c)) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local sc=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_EXTRA,0,1,1,nil,e,tp,c):GetFirst()
	if sc then
		local mg=Group.FromCards(c)
		sc:SetMaterial(mg)
		Duel.Overlay(sc,mg)
		if Duel.SpecialSummon(sc,SUMMON_TYPE_XYZ,tp,tp,false,false,POS_FACEUP)>0 then
			sc:CompleteProcedure()
		end
	end
end