Gan Ceann Invocation: Not Your Time

NOTE: Made to be an optional Eldritch Invocation for the Warlock Subclass, Dullahan (The Headless Horseman)

If you die, after 1 minute passes your corpse is subject to a revivify spell. Once you have been revived this way, you can't be revived this way again until 7 days pass.
Additionally, you can add your Charisma modifier to death saving throws.