I've got a build for you my friend. I'll just list the necessary crystal, set, talents, and mythics for the build. If you want everything I can do that too, but there are a lot of affixes you can change to adapt your play style. Damage ranges anywhere from a few million to a few billion.
It is as fun a build as any I've played (prefer it over Ninja build for PVE). Also pretty strong for PVP.
Gauntlet (Vacuus Scipio, Mutiny)
Set: Maelstrom, Defiant)
Mythic: Cosmic Orb
100% weapon damage OR 100% Ice Damage
OH: Prefer Orb. I use Eternal Spellbinder
100% Ice Damage
45% Crit Chance
Talent: I use wizardry, but you could use a legend elem crit affix instead to pick something else
Mythic: whatever you want (or none) I use Desperation
Set: Cosmic Power (again you can do something else)
Crystal: MP on Hit
Set: Living Force
Use Ignore Resist or Effective Mythic
Crystal: Crit Damage
Mythic: Sanctuary or Empryean
I was fortunate enough to get an eternal one many moons ago with 10000 Ice Damage, 20% Dodge, 40% Ice Damage, 10 Barrier, 10 Recall.