Create a new table or save text values in MYSQL json/array?

I have a table called packages.

ID
title
description
created
modified

I want to save some package features that will be related to this table for each package.
For example:
Package 1
Features

  1. Great price
  2. Fast delivery
  3. Fast shipping

My question is if i should save these values in the packages as an array/json in a new column called features and if yes, what’s the best option(json,array)? Or, should I create a relationship with a new table called Features?

I’m just not sure if i should create a new table for that.