Spend 1 fortune (max 3), add an extra die to the roll.

Roll an additional die, remove highest die afterwards.

If you critically hit a target you stack a momentum charge. These can be spent when you want to but all your collected momentum charges must be spent per following roll (e.g. you have 3 charges, you kill a target with momentum, now the next target also need to use your remaining momentum charge, as well as the next one).

Momentum: For your next roll, you gain +1 to roll, you must reroll one die, and you ignore any penalty if you fail.