Druid epic clicky questions

[Cillaz]

Although it's a way off yet, mainly due to the VS and Faydedar parts, I wanted to ask epic wielders some questions about the clicky effect:
1) Does the dot land often or mainly get resisted?
2) Is there a way to lower the resists of it getting resisted? A debuff spell we have or maybe tash/malo?
3) What dot/s does it stack with (just druid spells, not other classes)
4) What's the total dot damage you can put out (I.e the total damage per tick of all stacked dots and epic)
5) Do you even cast it or do you use the epic just for the stats?
Just some Q's I was wondering about.