Instead of using the luck chart to see on what rolls the attacker critically hits, a d100 can be used to see how likely it is for a unit to critically hit. They have a % chance of critically hitting = their Luck stat. Swordmasters and Halberdiers have a +15% chance to critically hit. Weapons with an x3 critical multiplier add a +10% to the character’s critical hit chance, and an x4 adds a +20% (the maximum critical chance is 65% with a Swordmaster wielding an x4 weapon with 30 Luck).
The d100 is rolled after the attack is made. The critical hit chance is subtracted by the enemies’ level. For promoted units, add +20 to the level.
Formula: Luck + Class Critical Bonus + Weapon Critical Bonus – Enemies’ Level.