I don't see a problem here, globally. Really.
Endurance. Health. The wins via these substats are equal in some sense.
Now we have the choice. It's good. Because pre-Sahdow&Mist state: "No one able to fight using Endurance, except the Tanks." It was annoying. Because it was ugly.
And the Trixter's form as Endurance-oriented fighters is ... ugly too. Regeneration 400+ (i saw it!) of Health and 27+ of Endurance per round lying out of my understanding. It just not fit in the current BG fights, where we are trying to win having few points of Health/Endurance more than opponent...
And, again, it will lead, obviously, to "new" concept. Which is old. "Have one ultimate style/skillset and You will be fine." It's a mirror of the Tanks. Same idea. Same principle:"I will stay! Does not matter!". So, it's annoying so long. :)
I'm disappointed.
Nothing more.
// The problem which Trixters currently have (in my opinion, sure) it's the problem like "Too much useless offensive activates." It will be resolved soon. By something like that:
Allowing to use both Bastard and Net. The Hell.