Oily
If this card is Normal or Special Summoned: You can reduce the Levels of all Insect monsters you currently control by 1. If the battle position of this card is changed: You can Special Summon 1 "Oily Cicada" from your hand, Deck, or GY. You can only use each effect of "Oily Cicada" once per turn.
local s, id, o = GetID()
function s.initial_effect(c)
	--lv down
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1, id)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetTarget(s.lvtg)
	e1:SetOperation(s.lvop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--special summon
	local e3 = Effect.CreateEffect(c)
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_CHANGE_POS)
	e3:SetCountLimit(1, id + o)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.filter(c)
	return c:IsFaceup() and c:IsLevelAbove(2) and c:IsRace(RACE_INSECT)
end
function s.lvtg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_MZONE, 0, 1, nil)
	end
end
function s.lvop(e, tp, eg, ep, ev, re, r, rp)
	local g = Duel.GetMatchingGroup(s.filter, tp, LOCATION_MZONE, 0, nil)
	for tc in aux.Next(g) do
		local e1 = Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetCode(EFFECT_UPDATE_LEVEL)
		e1:SetValue(-1)
		e1:SetReset(RESET_EVENT + RESETS_STANDARD)
		tc:RegisterEffect(e1)
	end
end
function s.sfilter(c, e, tp)
	return c:IsCode(id) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.sfilter, tp, LOCATION_DECK + LOCATION_HAND + LOCATION_GRAVE, 0, 1, nil, e, tp)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_DECK + LOCATION_HAND + LOCATION_GRAVE)
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
		return
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local sg = Duel.SelectMatchingCard(tp, aux.NecroValleyFilter(s.sfilter), tp, LOCATION_DECK + LOCATION_HAND + LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
	if #sg > 0 then
		Duel.SpecialSummon(sg, 0, tp, tp, false, false, POS_FACEUP)
	end
end


Oily
If this card is Normal or Special Summoned: You can reduce the Levels of all Insect monsters you currently control by 1. If the battle position of this card is changed: You can Special Summon 1 "Oily Cicada" from your hand, Deck, or GY. You can only use each effect of "Oily Cicada" once per turn.
-- Oily
local s, id, o = GetID()
function s.initial_effect(c)
	--lv down
	local e1 = Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCountLimit(1, id)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetTarget(s.lvtg)
	e1:SetOperation(s.lvop)
	c:RegisterEffect(e1)
	local e2 = e1:Clone()
	e2:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e2)
	--special summon
	local e3 = Effect.CreateEffect(c)
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_CHANGE_POS)
	e3:SetCountLimit(1, id + o)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.filter(c)
	return c:IsFaceup() and c:IsLevelAbove(2) and c:IsRace(RACE_INSECT)
end
function s.lvtg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_MZONE, 0, 1, nil)
	end
end
function s.lvop(e, tp, eg, ep, ev, re, r, rp)
	local g = Duel.GetMatchingGroup(s.filter, tp, LOCATION_MZONE, 0, nil)
	for tc in aux.Next(g) do
		local e1 = Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetCode(EFFECT_UPDATE_LEVEL)
		e1:SetValue(-1)
		e1:SetReset(RESET_EVENT + RESETS_STANDARD)
		tc:RegisterEffect(e1)
	end
end
function s.sfilter(c, e, tp)
	return c:IsCode(id) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.sfilter, tp, LOCATION_DECK + LOCATION_HAND + LOCATION_GRAVE, 0, 1, nil, e, tp)
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_DECK + LOCATION_HAND + LOCATION_GRAVE)
end
function s.spop(e, tp, eg, ep, ev, re, r, rp)
	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
		return
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local sg = Duel.SelectMatchingCard(tp, aux.NecroValleyFilter(s.sfilter), tp, LOCATION_DECK + LOCATION_HAND + LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
	if #sg > 0 then
		Duel.SpecialSummon(sg, 0, tp, tp, false, false, POS_FACEUP)
	end
end

