surpass your limits!

You have the determination and ability to supass your limits in the exact moments when it is needed that you do so
You can surpass your limits three times per long rest. Whenever you make an attack
roll, an ability check, or a saving throw, you can surpass your limits
to roll an additional d20. You can choose to do so after you roll the die,
but before the outcome is determined. You choose which
of the d20s is used for the attack roll, ability check, or saving throw.
You can also surpass you limits to evade when an attack
roll is made against you. Roll a d20, and then choose
whether the attack uses the attacker’s roll or yours.
If more than one creature surpasses their limits to
influence the outcome of a roll, they cancel each
other out; no additional dice are rolled.