Would be always shapeshifted as a werewolf. Werewolf companions spreading rabies for me and buffing my basic damage and poison damage, while also doing a lot of debuffing of enemies through poison.
Will we ever get anything like this in the game that is endgame viable?
Seems like PTR you could try a Werewolf companion build using the unique pants to convert them to Storm too. I’m not sure how or why you’d want to buff Basic skills considering aspects will be important for buffing your companions but maybe Wind Shear poison could be used here?
Raging Shred
Now: Shred’s third combo attack is larger, applies an additional 143% Poisoning damage over 5 seconds, and causes enemies to take 30% increased Poisoning damage for 5 seconds.
Virulent Aspect
Now: When Rabies infects an enemy, reduce its Cooldown by 0.2-0.99 seconds, tripled when infecting Elite enemies. You deal 25% 25-50% increased damage to enemies affected by Rabies.
Heightened Malice
Now: While a Poisoned enemy is Nearby, you deal 35% increased damage plus an additional 5% for each additional Poisoned enemy, up to 4.
Overload
Now: Dealing Storm damage also applies an additional 20% Poisoning damage over 5 seconds.
Lucky Hit: Dealing Poison damage has up to a 1% chance to summon a Lightning Bolt on the target dealing 120% damage.
Probably need to start using Nighhowler on Companion builds where possible too since
Blood Howl also gives 25% increased damage until you shapeshift out of Werewolf form.
mad wolfs glee chest unique , tempest roar chest if you want storm versus wolf skills.
other wise just use mad wolfs , wolf and companion skills. build around that and you should get to T2-T3 No problem which is endgame. 
that is what i would do
I guess I didn’t realize that Blood Howls bonus stayed until you shapeshift out. If that is the case, and you are always staying in Werewolf form and using the Nighthowler aspect does it continue to stack up?