Faustian

You have struck a deal with fate itself and gained the ability to influence immediate outcomes. However, this power comes at a cost.

• You have 1 fate point. Before making any attack roll, ability check or saving throw, you can spend this point instead of rolling. The result of your roll becomes a natural 20 and you may add any relevant modifiers to that 20. This does not guarantee a success on an impossible task (as the DC for a roll may be higher than 20 + your modifiers).
  
  
• Once you have expended your fate points, balance must be restored. The DM can, at any time, force the result of one of your rolls to be a natural 1. Your modifiers do not apply to this roll. 
  
  
• You regain your fate point only after the DM has caused you to fail a roll.