Assassin/Ninja Help with acrobat mechanics and sustainanility

Recently, I have been using @Sugo Oblivion Acrobat build:
https://hppeng-wynn.github.io/build...0039I10006C1001cC101Z6C0z0z0+0+0+0+0-l7zB+T77

I have been finding it very hard to use the combo of dash, lacerate, mulithit in combat whilst maintaining flight; are there any spell combos I'm missing out on that is blaringly obvious?

 

the build looks fine for sustaining
maybe use multihit a bit less often if you're casting multi even before it finishes, a big chunk of dmg comes from the final slash

 

https://hppeng-wynn.github.io/build...0039I10006C1001cC101Z6C0z0z0+0+0+0+0-l7zB+T77

this has a little more mana regen if ur struggling a lot