Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
1 Tuner + 1+ non-Tuner monsters While your LP are less than or equal to your opponent's, this Synchro Summoned card is unaffected by your opponent's activated effects. Once per turn: You can pay 1000 LP, then target 1 monster you control and 1 card your opponent controls; banish them. At the start of the Battle Phase: You can make this card gain ATK equal to the difference in your LP and your opponent's.
--サイコ・エンド・パニッシャー
--Psychic End Punisher
--Scripted by Yuno
local s,id=GetID()
function s.initial_effect(c)
	--Synchro Summon procedure
	c:EnableReviveLimit()
	Synchro.AddProcedure(c,nil,1,1,Synchro.NonTuner(nil),1,99)
	--Unaffected by the opponent's activated effects
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_IMMUNE_EFFECT)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.immcon)
	e1:SetValue(s.immval)
	c:RegisterEffect(e1)
	--Banish 1 monster you control and 1 opponent's card
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_REMOVE)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1)
	e2:SetCost(Cost.PayLP(1000))
	e2:SetTarget(s.rmtg)
	e2:SetOperation(s.rmop)
	c:RegisterEffect(e2)
	--Increase ATK
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_ATKCHANGE)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_PHASE|PHASE_BATTLE_START)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1)
	e3:SetCondition(s.atkcon)
	e3:SetOperation(s.atkop)
	c:RegisterEffect(e3)
end
--Immune
function s.immcon(e)
	local tp=e:GetHandlerPlayer()
	return Duel.GetLP(tp)<=Duel.GetLP(1-tp) and e:GetHandler():IsSynchroSummoned()
end
function s.immval(e,te)
	return te:GetOwnerPlayer()~=e:GetHandlerPlayer() and te:IsActivated()
end
--Banish
function s.rmfilter(c,e)
	return c:IsAbleToRemove() and c:IsCanBeEffectTarget(e)
end
function s.rescon(sg,e,tp,mg)
	return sg:FilterCount(Card.IsControler,nil,tp)==1
end
function s.rmtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return false end
	local g=Duel.GetMatchingGroup(s.rmfilter,tp,LOCATION_MZONE,LOCATION_ONFIELD,nil,e)
	if chk==0 then return aux.SelectUnselectGroup(g,e,tp,2,2,s.rescon,0) end
	local rg=aux.SelectUnselectGroup(g,e,tp,2,2,s.rescon,1,tp,HINTMSG_REMOVE)
	Duel.SetTargetCard(rg)
	Duel.SetOperationInfo(0,CATEGORY_REMOVE,rg,2,0,0)
end
function s.rmop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetTargetCards(e)
	if #g>0 then
		Duel.Remove(g,POS_FACEUP,REASON_EFFECT)
	end
end
--Increase ATK
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetLP(tp)~=Duel.GetLP(1-tp)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsFaceup() and c:IsRelateToEffect(e) then
		local atk=math.abs(Duel.GetLP(tp)-Duel.GetLP(1-tp))
		--Increase ATK
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD_DISABLE)
		e1:SetValue(atk)
		c:RegisterEffect(e1)
	end
end