You have made a pact with a future version of yourself, drawing on your own power through a near-endless loop of bootstrap paradoxes.  Each time you use your power, you are relying on your future self sending the power backwards in time to you, along with advice and foresight.  You might gain your powers through a time machine your future self once used, or through a magical device that can see into the future.

Expanded Spell List

The Paradox lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you.

Paradox Expanded Spells

Spell Level	Spells
1st	alarm, identify
2nd	augury, locate object
3rd	blink, clairvoyance
4th	divination, locate creature
5th	contact other plane, legend lore

Temporal Loan

Starting at 1st level, you may cast a number of additional spells per day equal to your proficiency bonus.  Each time you cast a spell in this way, it is treated as if you cast it with a warlock spell slot, and cannot be a level higher than you can cast with a warlock spell slot.  Casting a spell in this way adds that spell to your Time Debt, which can hold no more spells than twice your level.  Within 1 week of adding a spell to your Time Debt, you must cast the spell again in a ritual that has no effect beyond sending the spell back to your previous self.  If you have not paid off a Time Debt within a week of casting the original spell, you lose 1 maximum hit point per level of the Time Debt spell.  This effect can stack, though not reduce you to 0 maximum hit points.  These maximum hit points are returned when you pay off the Time Debt.

Glimpse of the Future

Starting at 6th level, you can use your future self's knowledge to avoid attacks at a cost.  When you are hit with an attack, you can use a reaction to make that attack miss.  You cannot use this feature until you are attacked again.  This next attack automatically hits, though cannot critically strike unless you are paralyzed or unconscious.

Paradox Loop

Starting at 10th level, you can choose to anchor yourself to a specific point in time and space upon finishing a long rest.  If you die within a day of anchoring yourself, you are instead sent back in time to the point at which you anchored yourself.  Once you go back in time using this feature, you cannot use it again for a week.

Break Time

Starting at 14th level, you can break the temporal flow, causing time to pass differently for different creatures.  As an action, choose a number of creatures of up to your charisma modifier(minimum of 1) within 60 feet of you.  Each creature is either subjected to the slow spell(saving throw still required), or gains the benefits of the haste spell(Your choice for each creature).  None of the effects requires concentration, but if you die, time resumes to normal for the targeted creatures.

Once you use this feature, you can’t use it again until you finish a long rest and pay off any Time Debts you may have.