An idea for a major improvement of subclass identity/feeling:
Grant Siennas Battle Wizard the “Blessed Shots” treatment, so Tranquility cooldown resets on melee kill.
This way you can use your staff, but at high heat you go into melee, proc tranq. and vent. I think this would reinforce her background as controlled wizard reall well.
PS Pls improve the burning damage on Fire Walk and Unchained F. Maybe something in the lines of Lamp Oil would be awesome. I’d love to lay a line of fire to block/decimate a horde for a few seconds. And for Unchained, make it stagger, no direct damage, but basically spread lamp oil that damages the unchained for some heat (and the enemy ofcourse)