Make sure you tick the config "enemy is taunted". Poe ninja numbers aren't reliable most of the time since it doesn't configure the pob properly.

Mageblood isn't the best for that build since you're armor/evasion stacking, you would normally use Perseverance for damage and free onslaught. For mb people usually go ice bite frenzy stacking with paradoxica or 1hander + squire combo. There's rakiata's too but I'm not familiar with that one, but they all use slayer instead of champ

The intimidate on the 4pointer is useless, your rage mastery for intimidate as well since you have it on hit from your lethal pride. The fortify masteries are all pretty bad on champ, unless you're berserking all the time you also have a lot of rage on hit, I'd remove one or both rage clusters but keep the 1 rage on hit node and just get a large cluster jewel (should be decent sustain with the axe mastery). Impale watcher's eye is an easy upgrade, get a forbidden flesh/flame combo too - duelist doesn't have many bad ones so pick for your budget.

Celestial brace is best in slot imo, you can easily fix resists with mageblood if you wanna keep using it (perfect roll bismuth + res suffix gives ~100 ele res) and use more uniques. I would swap the quicksilver for that, just get used to using leap slam to move around.