Precognition

You possess the unique ability to see the future. Whether this be because a higher being has given you their blessing, or you somehow manifested this power yourself, you can now see vague scenes from the future.

You have advantage on all Perception checks. 

As a reaction, you can add a d4 to any saving throw, this can be added before or after you know whether you have succeeded.You can use this feature once, being unable to use it again until you finish a short rest or a long rest.

Outside of combat, you might be plagued by vague visions of the future. They can occur at any time, and are usually preceded by a piercing pain in your skull.