Warrior Abilites:
- Charging Bull
- Combat Roll
- War Cry
- To The Death
- War Horn
- Lunge & Slash
Rogue Abilities:
- Throwing Blades
- Spinning Blades
- Flashing Steel
- Shadow Strike
- Hidden Blades
- Deathblow
- Parry
There are more rogue abilities in her trees, and I would say that people tend to rely on more of the rogue abilities than warrior ones. The only warrior ability I see being used as frequently as the rogue abilities is Charging Bull.
You can't claim that that she is more warrior-like and use Flow of Battle as evidence, when she has another defining passive that also utilizes crit chance, but it is exclusive to rogues. Flow of Battle and Looked Like it Hurt go hand in hand. Edit: Cooldown on crit isn't even exclusive to warriors, seeing as the Archer has Opportunity Knocks.
I think of her more as a rogue than a warrior. She has more rogue abilities, uses daggers, promotes to cunning, and opens rogue doors. That trumps guard generation and more warrior passives in my book.
Opportunity Knocks is meant to be based on your party's critical strikes, not your own ( When an ally critically hits, you take advantage of their success faster with reduced cooldown times) just because it works for your own crits just means the code is still bugged. Using your own Critical strikes for cool-down reduction was meant to be a Warrior trait.
Through the list of her Warrior to Rogue tree items including passives.
Warrior:
1. Lunge And Slash
2. Deep Reserves
3. Flow of Battle
4. Fervor
5. Shield Breaker
6. Furious Blows
7. Charging Bull
8. Combat Roll
9. Bulwark
10. Turn the Blade
11. Bear Mauls the Wolves (I think Izzy gets this one too, but most of the Warriors have it)
12. War Cry
13. Cutting Words
14. To The Death
15. Untouchable Defense
16. War Horn
17. Grisly Mutilation
18. Terrifying Presence
19. Unyielding (Started on Korbin first, Isabela and Pala got it long after)
Rogue:
1. Flashing Steel
2. Spinning Blades
3. Throwing Blades
4. Shadow Strike
5. Looks Like It Hurts
6. Hidden Blades
7. Silent Sister
8. Unforgiving Chain (Warriors have a version of this one too, since you brought up Opportunity Knocks)
9. Dance of Death
10. Salty Sea Dog
11: Disable (Which is actually a reskinned Warrior passive to accommodate for Dex, see Crippling Blows and the fact that Disable doesn't exist in SP)
She also has more hit points per level than the other rogues even after she had it nerfed, and if they could have gotten her to use one handed weapons instead of daggers they would have but the reason why she doesn't and can't has already been explained a few times. Also not long ago they were considering switching her over to Kick doors but I have a feeling that has the same problem as one handed weapons instead of daggers at this point.
I play her as a tank build: War Cry, Charging Bull, Flashing Steel and either War Horn or Combat Roll. That's part of why I consider her a Warrior over Rogue.