Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Discard 1 Winged Beast monster; return all cards in your opponent's Spell & Trap Zones to the hand. You can banish this card from your GY; reveal 1 Winged Beast monster in your hand, and if you do, reduce the Levels of monsters in your hand with that name by 1 for the rest of this turn (even after they are Summoned). You can only activate 1 "Simorgh Repulsion" per turn.
--神鳥の排撃
--Simorgh Repulsion
--scripted by Larry126
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--Level down
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.lvtg)
	e2:SetOperation(s.lvop)
	c:RegisterEffect(e2)
end
function s.costfilter(c)
	return c:IsRace(RACE_WINGEDBEAST) and c:IsMonster() and c:IsDiscardable()
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.costfilter,tp,LOCATION_HAND,0,1,e:GetHandler()) end
	Duel.DiscardHand(tp,s.costfilter,1,1,REASON_COST|REASON_DISCARD,nil)
end
function s.filter(c)
	return c:GetSequence()<5 and c:IsAbleToHand()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,0,LOCATION_SZONE,1,e:GetHandler()) end
	local sg=Duel.GetMatchingGroup(s.filter,tp,0,LOCATION_SZONE,e:GetHandler())
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,sg,#sg,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local sg=Duel.GetMatchingGroup(s.filter,tp,0,LOCATION_SZONE,e:GetHandler())
	Duel.SendtoHand(sg,nil,REASON_EFFECT)
end
function s.lvfilter(c)
	return c:IsRace(RACE_WINGEDBEAST) and c:IsMonster() and c:IsLevelAbove(2) and not c:IsPublic()
end
function s.lvtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.lvfilter,tp,LOCATION_HAND,0,1,e:GetHandler()) end
end
function s.afilter(c,code)
	return c:IsCode(code)
end
function s.lvop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CONFIRM)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_HAND,0,1,1,nil)
	Duel.ConfirmCards(1-tp,g)
	Duel.ShuffleHand(tp)
	local hg=Duel.GetMatchingGroup(s.afilter,tp,LOCATION_HAND,0,nil,g:GetFirst():GetCode()):ForEach(function(tc) tc:UpdateLevel(-1,RESET_EVENT|(RESETS_STANDARD_PHASE_END&~RESET_TOFIELD),e:GetHandler()) end)
end