Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
1 "Predaplant" monster + 1 DARK monster whose original Level is 8 or higher Must first be Fusion Summoned. Once per turn: You can target 1 face-up monster on the field; until the end of this turn, change that target's ATK to 0, also that target has its effects negated. If this card is destroyed and sent to the Graveyard: Destroy as many monsters on the field as possible, then you can banish 1 Level 8 or higher DARK monster from your Graveyard and Special Summon this card from the Graveyard.
--グリーディー・ヴェノム ・フュージョン・ドラゴン 
--Greedy Venom Fusion Dragon
local s,id=GetID()
function s.initial_effect(c)
	--fusion material
	c:EnableReviveLimit()
	Fusion.AddProcMix(c,true,true,aux.FilterBoolFunctionEx(Card.IsSetCard,SET_PREDAPLANT),s.ffilter2)
	--spsummon condition
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	e1:SetValue(s.splimit)
	c:RegisterEffect(e1)
	--Negate effects and change ATK to 0
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_DISABLE+CATEGORY_ATKCHANGE)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1)
	e2:SetTarget(s.distg)
	e2:SetOperation(s.disop)
	c:RegisterEffect(e2)
	--Destroy monsters on the field, banish from the GY and special summon itself
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_DESTROY+CATEGORY_REMOVE+CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
s.listed_series={SET_PREDAPLANT}
s.material_setcode={SET_PREDAP,SET_PREDAPLANT}
function s.ffilter2(c,fc,sumtype,tp)
	return c:GetOriginalLevel()>=8 and c:IsAttribute(ATTRIBUTE_DARK,fc,sumtype,tp)
end
function s.splimit(e,se,sp,st)
	return not e:GetHandler():IsLocation(LOCATION_EXTRA) or aux.fuslimit(e,se,sp,st)
end
function s.disfilter(c)
	return c:IsFaceup() and not (c:GetAttack()==0 and c:IsDisabled())
end
function s.distg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and s.disfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.disfilter,tp,LOCATION_MZONE,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	local g=Duel.SelectTarget(tp,s.disfilter,tp,LOCATION_MZONE,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_DISABLE,g,1,0,0)
end
function s.disop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsFaceup() and tc:IsRelateToEffect(e) then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_SET_ATTACK_FINAL)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetValue(0)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		tc:RegisterEffect(e1)
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_SINGLE)
		e2:SetCode(EFFECT_DISABLE)
		e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e2:SetReset(RESETS_STANDARD_PHASE_END)
		tc:RegisterEffect(e2)
		local e3=Effect.CreateEffect(c)
		e3:SetType(EFFECT_TYPE_SINGLE)
		e3:SetCode(EFFECT_DISABLE_EFFECT)
		e3:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e3:SetReset(RESETS_STANDARD_PHASE_END)
		tc:RegisterEffect(e3)
	end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsReason(REASON_DESTROY)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local dg=Duel.GetFieldGroup(tp,LOCATION_MZONE,LOCATION_MZONE)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,dg,#dg,0,0)
	Duel.SetPossibleOperationInfo(0,CATEGORY_REMOVE,nil,1,tp,LOCATION_GRAVE)
	Duel.SetPossibleOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,tp,LOCATION_GRAVE)
end
function s.rmfilter(c)
	return c:IsAttribute(ATTRIBUTE_DARK) and c:IsLevelAbove(8) and c:IsAbleToRemove() and aux.SpElimFilter(c,true)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local dg=Duel.GetFieldGroup(tp,LOCATION_MZONE,LOCATION_MZONE)
	if Duel.Destroy(dg,REASON_EFFECT)==0 then return end
	local c=e:GetHandler()
	local g=Duel.GetMatchingGroup(s.rmfilter,tp,LOCATION_MZONE|LOCATION_GRAVE,0,c)
	if #g>0 and Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsLocation(LOCATION_GRAVE) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
		and Duel.SelectYesNo(tp,aux.Stringid(id,2)) then
		Duel.BreakEffect()
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
		local rg=g:Select(tp,1,1,nil)
		Duel.Remove(rg,POS_FACEUP,REASON_EFFECT)
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end