My nigga's growing up. Finally getting out of betahood. That's all I ever wanted.
He gets more interesting to watch but better depends on whether you count psychosis as character development.
First one is at the end of the next arc, probably last scene of the cour.
Next is the end the 7th arc after he
sets a man on fire
Final one is the final arc where a whole bunch of nonsense happens and he goes off the deep end becoming the most insane member of the main cast.