Reliable

You are lucky in a different way. You can seemingly bottle up good luck from good days and use it on bad days.

• When you take this feat, you gain 2 reliability numbers (between 1 and 20). These numbers all start at 10, and do not change during a short or long rest
• Whenever you make an attack roll or saving throw without advantage or disadvantage, you may take the unmodified roll and exchange it for one of your reliability numbers. The unmodified roll becomes your new reliability number. You may use this ability once per turn
• Starting at 5th level, you gain a 3rd reliability number that behaves just like the others