I'm absolutely in love with Axe Diane, but even if I'm able to clear Abyss somehow I feel my team could do so much better. How would you improve this team?

I'm currently thinking on switching Daisy out to either Elaine or Mannie, but cannot really decide if it would be a good idea, and if so which one would perform better. Elaine would be nice for the Earth Damage boost, but then I would struggle with the burst collecting, since Tioreh's Wool alone isn't enough. Mannie altough would be better to collect magic points and use combined ultimates faster, also her Crit Damage boost would be handy since my Diane build is sharpened around towards the max crit chance potential.

Right now, this build works the following way: collect mana with every hero, once have 5 then I use Diane + Daisy combined for the instant burst trigger, quickly buff with King and Tioreh, then bring the Axe and spam my Q as many time as possible and ult in that small damage window.

(I have a gauntlet + sword and shield build as well, do know about that one exist, and being much better, so please focus on the axe playstyle here)

  
  
\+Also forget, that I use the Crit Chance set for Daisy, which I would lose if I change it to Elaine or Mannie as well, that one also have to be in concideration, which makes me hard to decide what and how to do, would be nice to have a more expert opinion in this topic.

How would you make this team better?