Against fighters I always use tezza, beacause of the stun resist and stun attack rate.
Against elders Valakas can be a good choose if their sleep lands often.
Against nukers you have to decide whats the most important for u: Mdef (b.freya), Patk+HP(valakas), or stun attack rate(tezza)
I would keep Tezza, B.Freya and Valakas in my inventory, but if you can't get all of them, i think you should using Tezza.