Assassin/Ninja weathered build

This is my build, and I would like to know where I can make improvements because I consistently feel that my damage is insufficient during raids.
https://wynnbuilder.github.io/build...66C01001fI1007lU1007lU15150+0+0+0+0--hxbgcYN4
Morph-Stardust
Dondasch
Sagittarius
Revenant
Dispersion
Prism
Prowess
Diamond Fusion Necklace
I use two Cosmic Tomes of Weapon Mastery III to support my build.

 

people usually don't go full trickster, you either mix it with shade or acro
your build has way too low mana sustain with high spell costs
also i suggest you use the "Copy for sharing" button or put off tomes in raw links

https://wynnbuilder.github.io/build...0FU1000FU1000FU1007lU0z0z0+0+0+0+0-ldxakIZu26
WynnBuilder build:
> Cumulonimbus
> The Courier's Cape
> Anaerobic
> Pro Tempore
> Ingress
> Ingress
> Double Vision
> Contrast
> Weathered [a6a6a6]

this isn't the best but it has the basics
basically what you do is you get jump height items(Stratosphere and Double Vision are commonly used) and use Weightless to gain mana while constantly juggling with spin attack cycles

 

I understanded, thank you very much.