Cheapened Spells

Once per long rest, you can use one meta magic feature (from those meta magic options you have available) with a fixed sorcery point cost when you cast a spell that benefits from that meta magic feature at no cost of your sorcery points. Meta magic used this way follow all other rules of the meta magic's features (such as the ability to stack it with other features, if applicable). 

If your class doesn't utilize meta magic as part of it's class feature, you may instead choose one meta magic feature that costs 1 sorcery point and use it once per long rest when casting a spell.