re: Ilona's ID move:
Backstab (20%): Adds Speed to Strength for damage and auto-crits, but only hits once regardless of Dexterity difference. Has a chance to instantly kill the target. If a knife/dagger is equipped, ignores defense and lowers target's Strength, Vitality, Dexterity, and Speed by 5%.
Tal beat you to it before it was mentioned.
That aside, it's worth noting the following:
Rafael's ID is MT, but has a <50% hitrate.
Half-true. That's on Code EA (Hex-target variant), not Code AE (the single-target version). Focused variant, I'm seeing as very accurate.
Katarine's Biogenesis may or may not stay as a %-based skill due to her limited charges.
Noting that Katarine is not only running off of limited charges, but also D intelligence, is regen-type, and is pretty much carrying the healing for Team Isolde when there's nobody in the fifth slot, before you go too far with the "need INT-based healing" bit for her.
Isolde and Aurel need their Cooldown times listed. To standardize, 1-turn Cooldown = one turn where the move cannot be used. This is how NEB noted it in Meilin and Kasia's skillsets.
Fully aware of this. I've been trying to think of Isolde's cooldown times myself, but they're pretty damn tricky to balance.
[EDIT] Because I have nothing better to do, listing relative PC durabilities alongside DEX, EVA, and armor.
Physical:
Aurel: 1.8944, Heavy Armor, C Dex, F- Evade
Rafael: 1.716, Medium Armor, D- Dex, F- Evade
Artur: 1.5872, Heavy Armor, D Dex, D+ Evade
Isolde: 1.3688, Heavy Armor, D Dex, C Evade
Shao: 1.3216, Medium Armor, B- Dex, D Evade
Jin: 1.3216, Light Armor, D Dex, D Evade
Erastus: 1.16, Heavy Armor, F+ Dex, D Evade
Xun: 1.12, Light Armor, D- Dex, D Evade
Kasia: 1.1024, Medium Armor, D Dex, F Evade
Claire[Base]: 1.08, Medium Armor, C Dex, C Evade
Yiu: 1.06, Medium Armor, B Dex, C Evade
Faulheit: 1.0175, Light Armor, C- Dex, C Evade
Noemi: 1.00, Medium Armor, B Dex, C Evade
Eirwen: 0.68, Light Armor, B+ Dex, C Evade
Katarine: 0.6688, Light Armor, A- Dex, A- Evade
Mirek: 0.64, Light Armor, S Dex, A Evade
Fahim: 0.616, Light Armor, C Dex, G Evade
Selena: 0.608, Light Armor, D Dex, C Evade
Meilin: 0.4872, Light Armor, B Dex, B+ Evade
Ilona: 0.4864, Light Armor, S Dex, S Evade
Magical:
Aurel: 1.7408, Heavy Armor, F- Evade
Erastus: 1.71, Heavy Armor, B- Evade
Kasia: 1.4144, Medium Armor, B+ Evade
Rafael: 1.3992, Medium Armor, D+ Evade
Isolde: 1.3688, Heavy Armor, C Evade
Faulheit: 1.3632, Light Armor, F Evade
Mirek: 1.36, Light Armor, D- Evade
Fahim: 1.2496, Light Armor, A+ Evade
Shao: 1.1872, Medium Armor, D Evade
Yiu: 1.18, Medium Armor, C Evade
Jin: 1.0528, Light Armor, C Evade
Xun: 1.0528, Light Armor, F+ Evade
Noemi: 1.00, Medium Armor, C Evade
Claire[base]: 0.8208, Medium Armor, C Evade
Artur: 0.8192, Heavy Armor, F Evade
Ilona: 0.76, Light Armor, B Evade
Selena: 0.752, Light Armor, D- Evade
Katarine: 0.7216, Light Armor, A- Evade
Eirwen: 0.68, Light Armor, C Evade
Meilin: 0.6688, Light Armor, D- Evade