Fatestealer

Nary a creature under the sky goes through life without hearing fantastical stories of legendary thieves achieving impossible feats against all odds. Most would think of these rogues as lucky bastards. Many of them are lucky bastards. But, for a select few, luck has nothing to do with it. 

Such rogues are known as Fatestealers.

Stolen Fate

Starting at 3rd level, you are able to steal the fates of others, changing their destiny and, by extension, yours. When you gain this feature at 3rd level, roll a d20 and record the number rolled, representing your Stolen Fate. 

You can use your reaction to steal any attack roll, saving throw or ability check made by a creature that you can see and replace it with your Stolen Fate.

If the attack roll, saving throw or ability check has advantage, you steal and replace the highest roll. If it has disadvantage, you steal or replace the lowest roll. You can do this after the DM announces the outcome of the roll, potentially changing the outcome. 

Record the replaced roll as your new Stolen Fate, and record the name of the creature you stole it from. You can’t steal the Fate of a creature if they were the original owner of your current Stolen Fate.

You can use your Sneak Attack against a creature whose Fate you’ve stolen even if you don't have advantage on the attack roll, but not if you have disadvantage on it.

You can use this feature a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

Wheel of Fortune

Starting at 9th level, you can use your reaction to impose advantage or disadvantage on any attack roll, saving throw or ability check made by a creature that you can see. 

If you impose advantage, decrease your Stolen Fate by 5, down to a minimum of 1. If you impose disadvantage, increase your Stolen Fate by 5, up to a maximum of 20.

Once you use this feature, you can’t use it again until you gain a new Stolen Fate. 

Pilfered Reading

Starting at 13th level, you can cast the divination spell once without expending spell slots or material components. When you do, your question must be about the original owner of your current Stolen Fate.

Once you use this feature, you can’t use it again until you finish a long rest.

Thief of Destiny

Beginning when you reach 17th level, you regain all expended uses of Stolen Fate when you finish a short or long rest. 

Additionally, you can use your Stolen Fate feature on attack rolls, ability checks and saving throws made by yourself without having to use a reaction. Otherwise, you obey all other rules of your Stolen Fate feature.