Poison - Option for non stacking poison.

To make different poison builds available (including one where you aply poison once and then use other skills) I have some suggestion, but they for sure can be made better and balanced over things I don't know.

Node suggestions
Some on the main tree, some on the pathfinder, whatever is best.

- Increases to poison duration aply to it's damage.
Reductions to poison duration aply to it's damage at double value.

- You can aflict only one stack of poison on enemy. +X% Poison Dmg and/or Magnitude.
Skills that at base aren't poison (or aren't supported by chance to poison) can't poison. All chance to poison is changed to +X% Poison dmg.

- First poison aplied to a target, have +2s duration. -X% Poison dmg. (First meaning if the target doesn't have currenlty a stack of poison, not first in the life of the target)

.
The Toxic Growth - Exploding Growth
Skill should be changed into Exploding Growth.
It shoots not green but brown nodes that will explode or can be poisoned.
You always: Shoot > Arrows hit > Growths form
Then either:
- Growths grow and explode after a time (slower but more dmg)
- You poison growths > They explode faster AND aply poison you poisoned them with (so it have it's properties including supports that affects that poison).

This way it can play either as:
- Stronger timed aoe for non poison build
- Faster aoe that prolongs/ reaplies poison

Still would love to have this option.

I'd certainly like some more ideas from GGG with poison because all I'm excited about with it is its armor break capability with the support gem.
I just have poison gas with sealed shots so it just spreads 3 poison clouds in random directions, have a passive and gem for 3 stacks and then proceed to carry on with "my day".

I think they've certainly left some things on the after burner for now and things like Vine Arrow after the heavy nerf just feel dull, its pretty much only a slow skill for survivability I think.