Vesper Juggernaut

With this build Vesper can deal crazy dps while still absorbing pressure and tanking most hits.

Prioritize maxing his passive (EL's Mercy idk why it's showing the other passive) as much as possible as the AS scaling is really strong and scales multiplicatively with the healing he gets (more attacks = more healing, higher level passive = more healing per proc)

Also this site doesn't like me messing with the flex slots so I usually run 2-3 of his flex perks for Discipline placed in his Vitality tree to make room for 3 more Destruction perks (the ones not listed are gathering storm, Lucky shot, and Powerful blow) Hence why I left his flex tree empty and his Vitality tree partially filled.

The listed memories and essences are basically the generic high roll you can get but I'll list some things you should mainly look out for:
Essences

Obsidian

Momentum

Void

Voracity

Responsibility

Twilight if you either have starry sky or several dark damage sources

starry sky

dusk

Memories

Blood Harvest

Umbral Edge

Spinning Whirlwind

any of the "Dark ___" memories

Hysteria if you're lucky

Hemorrage if you decide not to run the hammer of divinity perk

Pressure point is a good early pickup but I wouldn't waste too much resources on it

Long story short you're basically aiming to become an auto attack bot that has epileptic seizures on your ops so do whatever you think get you more attack speed.
Also his imagination slots are basically all preferences based so do whatever there. Also also his ult sucks for this build trust me so just drop it for dark spear or smth when you can.

Edit: I can't seem to change what passive to take so take the one that scales AD and AS.