Warrior's spiked armor trait...
At least there’s no more traits that reward you for holding onto your adrenaline while all the rest ask that you spend it. Oh wait, peak performance still does that (mind you, peak performance + new adrenal health + berserker’s power + rampage seems… reasonable.)
I personally like powerful synergy doubling your fire aura durations (the only self-generated leap available to wars) while king of fires, the burning trait, will just make you detonate them anyway.