[1.0.6.1] Wraith of the Storm
2H lightning Cadence & PM Warder build
Damage: Lightning
Active skills: Cadence, Primal Strike, Blitz, Wind Devil, Wendigo Totem, Chain Lightning
Passive skills: Stormcaller’s pact, Mogdrogen’s pact, Field Command, Stormcaller aura
https://www.grimtools.com/calc/a2EGjDPZ
- Screenshot with Fighting Spirit, Deadly Momentum and Prowess active
Credits: Thanks to Veretragna for help with gameplay video.
Gameplay video: https://www.youtube.com/watch?v=broo-N609r4&feature=youtu.be
The build concept is to focus on cadence with maximum physical to lightning damage convertion and use primal strike as support attack skill.
Rhowan’s crown was dropped in name to boost OA by investing devotion point into Dying God. However the damage level and RR are enough for comfortable game. In particular it was checked in the battle against Valdaran. Gameplay is pretty good and fun with a lot of lightning procs visual effects. 
Max damage dealt during the testing was 483K. In fight against Carraxus (heart of the beast for Coven, “Desperate Measures” quest) max damage dealt to the beast was 454K.
Alternative setup without BoM: https://www.grimtools.com/calc/q2mKq45Z
Pros:
- No MI items in gear setup
- High skill disruption protection
- High lightning damage
- No problems to complete campaign content
- Totem Wendigo and Feral Hunger - good sources of healing
- Saves: Menhir’s Will
Cons:
- Not the highest possible lightning RR - the Crown ia absent in this setup.
- Badge of Mastery with +5 to skill bonus is required - not an easy to craft it
- Probably can’t win fight against Avatar, Lokkar and Ravager on Ultimate - didn’t test it
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[1.0.6.1] Storm Keeper
2H cadence Warder with Stormreaver focused on electrocute damage
Damage: Lightning
Active skills: Cadence, Aether Corruption, Blitz, Wind Devil, Wendigo Totem, Storm Totem
Passive skills: Stormcaller’s pact, Mogdrogen’s pact, Field Command, Stormcaller aura
https://www.grimtools.com/calc/a2EGlO3Z
Active buffs are Prowess and Fightning spirit
Core concept of the build is the usage of myth. Stormreaver and focusing on electrocute damage. Cadence is used as main attack and Wind Devil with Storm Toteam are used for AoE attack support.
Since the build is focused on electrocute damage Rhowan’s Crown was dropped in order to take Tempest. However RR are enough for comfortable gameplay - tested in fight against Valdaran.
Max damage dealt was 304K with not maxed out constellations procs.
Pros:
- No MI items in gear setup
- High skill disruption protection
- High lightning damage
- No problems to complete campaign content
- Totem Wendigo and Feral Hunger - good sources of healing
- Saves: Menhir’s Will
Cons:
- Not the highest possible lightning RR - the Crown ia absent in this setup.
- Badge of Mastery with +5 to skill bonus is required - not an easy to craft it
- Energy issue - with active use of attack skills you need to use potions to restore it. Royal Jelly Extract can help to resolve this issue.
- Did not test the build against Avatar, Lokkar and Ravager on Ultimate.