1. The sound of skills warhorn equipped to carry sound like the howl of a wolf.
2. That the legendary weapon itself emanates fog.
3. There is a small bright moon in an orbit about the legendary weapon.
I hope you like it 
3 Suggestions for "Howler"
1. When you use a skill, you can actually hear a wolf howling, but its very quiet
2. Well, we have the foggy aura around the character already, imo thats enough.
3. There used to be a moon during night time, but they (accidentally?) removed it when they fixed a sound bug, if I remember correctly.
It’d be fine if they at least brought back the moon during night.
Regarding the sound, I say completely replace the use of skill, it sounds like when the pet wolf howls.
With respect to the other, I think that ultimately should improve the look of this gun with some effect because it is too poor to be legendary.