Consider a turn of combat for a second…
Sontir Fel + elusive
Attacker does all of their attacks and you get a crit and one damage roll.
Soontir rolls his three die, gets a focus, focus, and blank.
Soontir then tells the attacker to re-roll the crit, getting a focus and stress.
The attacker rolls a hit/crit.
Soontir then uses the focus to turn the two focus die results into evade evade.
Can Soontir choose to have the attacker re-roll the crit getting him the focus token and stress token to use during that attack? From reading the rules, there is no defined time that the elusive defender must use the re-roll ability so choosing to re-roll before hits are calculated is legal. Right?