SSE Poison Cloud spell

[NistashiMar]

Here is my idea:

1) (i dont know this one is posiible or not) Cower a big area with Wall of Poison effect with one instant cast (like Wall of Flames, Frost, Storms, but the poison variation from mod Poison Spells by Jay093)

2) (Optionally) Add this effect to custom bolts and arrows (Effect will trigger on bolt/arrow collision with enemy/terrain)

3) (Optionally) My character have immunity to this effect damage and have invisibility while inside the effect area

I think this variation of smoke bomb will make assassin gameplay much more joyful