Guild Wars 2

I’m running Dire build in WvW with following trait distribution:
2 – III
0
6 – IV / VI / XI
2 – VI
4 – III / X

Full dire armor and krait runes. However, I can’t decide if I should take 2 points from either DA or Acrobatics and go 6 points in Trickery for XIII. That would also give additional 100 condi damage. But I love both traits in DA and Acro, though I’m leaning more towards taking points from Acro. Suppose it’s just a matter of preference, but what would you do?

And then one more thing about the utilities. I run Blinding Power, shadowstep and Skale Venom. So pretty much what everyone else run. My question is though why do ppl pick Skale venom over Spider Venom? Since Spider venom stack 5 times and Skale only 3. Is it only cus Spider venom simply increase in duration rather than stacks per tick?

I would take from Acro

Very much agree, take them from Acro. The confusion stacks are pretty amazing at suprising people. Though if you do that I might suggest dropping ricochet for bountiful theft, and maybe even long reach. Some tradeoffs to be better at handling single targets.

Spider venom is only really good if you are going to run Leeching Venoms for the heals. Skale does better damage in real fights with condition cleanses.