The Way of the Rift Walker

(Not originally mine, found on pinterest) The Rift Walker Monk is one who has dedicated their lives to the study of time. Through years of training and meditation, these enlightened few can manipulate time to their needs. Specializing in opening rifts allowing access to greater strength at a high cost to themselves.

Time Skip

Starting at 3rd level, as a reaction you can spend 1 ki to roll Dex against your attacker if you win you take half damage, if a rift of 2 or higher is open, you may negate the damage instead.

Time Echo

Starting at 6th level, as an action you can spend 2 ki to partially return to a condition you were previously in restoring hit points 3 times your monk level. If a rift of 3 or higher is opened, this becomes a reaction and you may fully turn to a condition 3 turns ago, not counting removal of temporal strain.

Temporal Knowledge

Starting at 11th level, your attachment to the timeline allows you insight when there would normally be none. ou gain advantage on history checks and when under the effects of temporal strain, you can meditate for 1 minute on a person, place, or item to gain vague details on it.

Timeless Rip

Starting at 17th level, as an action you can spend 4 ki to rip open a portal of space and time on a target up to 40 ft away. The portal sucks the life from your target. The target must make a constitution save with a DC of 15, if failed they are reduced to 0 hit points, if successful they take 8d10 necrotic damage. If used while the 6th rift is open, on a failure they are pulled into the portal lost to space and time; if they succeed they take an additional 12 d10 necrotic damage, this closes your rifts immediately. If the target sees you casting this ability, they may make a DC 15 Dex save to leap out of the way in time as a reaction.

Rifts in Time

Starting at 3rd level, you can temporarily push your body beyond its limits with the bending of time. You are able to access the strength and speed of one possibility of your future self for 5 turns as a bonus action. There are 6 Rifts of Time, for everyone that you open, you gain the ability of that one and the ones previous. After the end of 5 turns, you reel from the effects of the time warp. Leaving you with temporal strain equal to gate opened in addition to dropping your initiative down by 10. Temporal strain works exactly like exhaustion levels except you may remove all at the end of a long rest. As your character level grows, so does your ability to access greater rifts. Level 3 you learn to unlock the first two gates. You learn the next rifts at levels 6, 11, 14, 17.

Rift 1: Your initiative goes up by 6
Rift 2: Your speed is doubled
Rift 3: You can make one additional martial arts or weapon attack when you use the attack action
Rift 4: You have advantage on all attack rolls and saving throws while this is in effect
Rift 5: You gain flying speed equal to half your movement speed
Rift 6: All attacks and abilities do max damage