Invocation: Legendary Sacrifice

This is an implementation of the Legendary Sacrifice invocation from Tasha's Crucible of Everything Else. Adding homebrew invocations is impossible in D&D Beyond. If you wish to use this invocation, add the feat to your character manually and leave the invocation selection in the character builder empty.

As a reaction when you make a saving throw, you can expend a warlock spell slot to succeed on the saving throw instead of rolling to determine an outcome. You cannot use this feature to succeed on a save you have already attempted and failed.