Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Level 4 Winged Beast-Type monsters Once per turn: You can detach 1 Xyz Material from this card; negate the effects of as many face-up cards your opponent currently controls as possible, and if you do, this card gains 300 ATK for each face-up card currently on the field, except this card. These changes last until your next Standby Phase.
--零鳥獣シルフィーネ
--Ice Beast Zerofyne
local s,id=GetID()
function s.initial_effect(c)
	--xyz summon
	Xyz.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsRace,RACE_WINGEDBEAST),4,2)
	c:EnableReviveLimit()
	--negate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DISABLE)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1)
	e1:SetCost(Cost.DetachFromSelf(1))
	e1:SetTarget(s.distg)
	e1:SetOperation(s.disop)
	c:RegisterEffect(e1)
end
function s.distg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(Card.IsNegatable,tp,0,LOCATION_ONFIELD,1,nil) end
end
function s.disop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(Card.IsNegatable,tp,0,LOCATION_ONFIELD,nil)
	local tc=g:GetFirst()
	if not tc then return end
	local c=e:GetHandler()
	for tc in aux.Next(g) do
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_DISABLE)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_STANDBY,2)
		tc:RegisterEffect(e1)
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_SINGLE)
		e2:SetCode(EFFECT_DISABLE_EFFECT)
		e2:SetReset(RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_STANDBY,2)
		tc:RegisterEffect(e2)
		if tc:IsType(TYPE_TRAPMONSTER) then
			local e3=Effect.CreateEffect(c)
			e3:SetType(EFFECT_TYPE_SINGLE)
			e3:SetCode(EFFECT_DISABLE_TRAPMONSTER)
			e3:SetReset(RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_STANDBY,2)
			tc:RegisterEffect(e3)
		end
	end
	if not c:IsRelateToEffect(e) or c:IsFacedown() then return end
	local atk=Duel.GetMatchingGroupCount(Card.IsFaceup,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,c)*300
	if atk>0 then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetValue(atk)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD_DISABLE|RESET_PHASE|PHASE_STANDBY,2)
		c:RegisterEffect(e1)
	end
end