Warlock: Optional Class Features

What are these?

The following list are class features that your dm may either allow you to have in addition to the features you gain from your class or they are options that might replace existing class features

Eldritch Versatility

4th-level warlock feature
Whenever you reach a level in this class that grants the Ability Score Improvement feature, you can do one of the following, representing a change of focus in your occult studies:

• Replace one cantrip you learned from this class's Pact Magic feature with another cantrip from the warlock spell list.
• Replace the option you chose for the Pact Boon feature with on the that feature's other options.
• If you're 12th level or higher, replace one spell from your Mystic Arcanum feature with another warlock spell of the same level

If this changes makes you ineligible for any of your Eldritch Invocations you must also replace them now, choosing invocation for which you qualify.