You studied the skeins of time through the sciences of astronomy and astrology and have spent years plucking the threads of reality to predict the future.  Now brief glimpses of possible futures come to you in rapid dream like flashes in times of emergency.  All uses of the Feat can be used as a reaction, even when surprised.

• You have 3 Prescience Points.  Whenever you make a saving throw, you can spend one point to roll an additional d20. You can choose to spend one of your Prescience Points after you roll the die, but before the outcome is determined. You choose which of the d20s is used for the saving throw.
• You can spend one Prescience Point when an attack roll is made against you. Roll a d20, and then choose whether the attack uses the attacker's roll or yours. If more than one creature spends a luck point or prescience point to influence the outcome of a roll, the points cancel each other out; no additional dice are rolled.
• You can spend one Prescience Point to skein the future intent of a person, place or thing.  You gain a magical +10 bonus on  Insight checks, Investigation checks, or Perception checks made for the next minute when dealing with the targeted person, place or thing.  
• You can also spend one Prescience Point to remove advantage from an attacker, thereby negating a back stab or similar attack that relies on having advantage to do extra damage against you. 
• You regain your expended Prescience Points when you finish a long rest.