I've found Iron Jaw to be a blessing in this regard and I see so few people outside of theatrics train in it and I'd wager many theatrics managers wouldn't train in it either if they didn't have to in order to unlock the next tier. Grim determination is another great one that is often overlooked. I think many are so focused on attack and defense they forget there are many other factors that go into winning. If you are running a rage gladiator you might be able to get away with not training in some of these types of skills since you are banking on destroying your opponent before they get a chance to hit you, but if you are war or theatrics, I'd say they are almost a must have.That's understandable, but getting stunned can be a match ender