I agree, no genius, but the trident is an under-appreciated weapon. Look at how well Brocliande does with it up in Sabre.
I think the real trick here is sang-chaud plus ballerines. She gets effectively 3 free rounds at the start of every fight and by that time has either the whip or the trident out to fend people off. Anyone who attacks has to make it past long weapon, shield, armor, peau. She gets a big burst of offense at the start with that high strength, then turtles up on defense and gets her hits from counters and blocks.
Not genius, but close! Contre and 6th sense would make this brute amazing; increvable of course would help and a few points of agility, all of which she could get by level 20 if she's lucky.