Cantrip Collector (5e Feat)
From D&D Wiki
Prerequisites: The ability to cast at least one spell.
Your time in the presence of wizards has allowed you to learn the following four cantrips - Mage Hand, Mending, Message and Prestidigitation. These spells do not count against your number of spells known. If you know any of them, you can select other cantrips to substitute the ones you know.