Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
During your Main Phase: You can make all monsters currently on the field gain ATK equal to their own Level x 100, until the end of the opponent's turn. If this card in the hand or field is used as material for a Fusion Summon, and sent to the GY or banished: You can target 1 of your "Despia" monsters or Level 8 or higher Fusion Monsters, that is banished or in your GY, except "Ad Libitum of Despia"; Special Summon it. You can only use each effect of "Ad Libitum of Despia" once per turn. * The above text is unofficial and describes the card's functionality in the OCG.
--デスピアの凶劇
--Ad Libitum of Despia
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--Monsters on the field gain ATK
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetCountLimit(1,id)
	e1:SetRange(LOCATION_MZONE)
	e1:SetTarget(s.atktg)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
	--Special Summon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_CARD_TARGET)
	e2:SetCode(EVENT_BE_MATERIAL)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_DESPIA}
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.HasLevel),tp,LOCATION_MZONE,LOCATION_MZONE,1,nil) end
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local tg=Duel.GetMatchingGroup(aux.FaceupFilter(Card.HasLevel),tp,LOCATION_MZONE,LOCATION_MZONE,nil)
	if #tg>0 then
		local c=e:GetHandler()
		for sc in aux.Next(tg) do
			--Increase ATK
			local e1=Effect.CreateEffect(c)
			e1:SetType(EFFECT_TYPE_SINGLE)
			e1:SetCode(EFFECT_UPDATE_ATTACK)
			e1:SetReset(RESETS_STANDARD_PHASE_END|RESET_OPPO_TURN)
			e1:SetValue(sc:GetLevel()*100)
			sc:RegisterEffect(e1)
		end
	end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return (r&REASON_FUSION)==REASON_FUSION and c:IsPreviousLocation(LOCATION_ONFIELD|LOCATION_HAND)
		and c:IsLocation(LOCATION_GRAVE|LOCATION_REMOVED) and c:IsFaceup()
end
function s.spfilter(c,e,tp)
	return not c:IsCode(id) and (c:IsSetCard(SET_DESPIA) or (c:IsLevelAbove(8) and c:IsType(TYPE_FUSION)))
		and c:IsFaceup() and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE|LOCATION_REMOVED) and chkc:IsControler(tp) and s.spfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE|LOCATION_REMOVED,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE|LOCATION_REMOVED,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end