After my tryouts i think that evade is best as mobility spell. You are not linked to target and you can position yourself regardless enemy location, that means it is also great aoe escape tool if your loc and destination are both predictably not safe places.
Also, about Spinning Blades. It may be less good for Tempest Fire Flask, because animation time, but is great for crit generation builds where you need heat-per-seconds most in order to generate stacked debuffs on enemy. It is personal choice, where you could favor bit highter effectivity of fire flask time, or your chance to process critical strikes and need for those depending on your skillset and party synergies.
Toxic cloud is good, because it makes your target to explode in new toxic cloud if it dies. This is good thing to use with frost flask, but there is serious need for escape mechanism. And, in that case you have or stealth or evade. Other movement spells (Shadow Strike, Flank Attack, Hook) cant be used as escape mechanisms if things become too bad. Normally it is possible to plan party barrier on the moment when your frost flask ends, but again, you better have escape mechanisms in order to reposition yourself our of aggro.
I think that either Evade or Stealth, or both are must have for tempest, because it gives you ability to reposition yourself while on CD for flasks.
Toxic Cloud is good ? Yay ! I heard from some people it was bad but then I forgot about the explosions proc. In that case, here is the revised final build.
Dual Weapon Tempest.
- Flask of Fire
- Flask of Lightning
- Stealth
- Knockout Powder
- Flank Attack
- Twin Fangs
- Poisoned Weapons
- Toxic Cloud
*use Thousand Cuts for tough boss battles.*
Flask of Fire has a great synergy with Twin Fangs. Twin Fangs damage is good and it has a short animation meaning it can be spammed over and over in a 5 second time period, which is the duration of Flask of Fire.
Flask of Frost has great synergy with Toxic Cloud. Toxic Cloud does DOT and AOE. Combined with the passive that essentially turns Toxic Cloud into a mini-walking bomb of sorts and Flask of Frost's massive damage reduction, free frost cloak and taunt...Well, you will have a good time.
Flask of Lightning has a great synergy with Knockout Powder. Upgraded Knockout Powder with Mercy Killing passive and a Haste, which is what Flask of Lightning is, allows you to disable and crit attack mobs easily.
Flank Attack, especially when upgraded, makes it one of the best combat initiation tool in the game. You can use Flank Attack from range, it does decent damage and when you execute it, you go into Stealth with the upgrade. Also, because of that, you can use it as an escape mechanism as well.
Stealth is the best tool in the rogue's arsenal to drop aggro and debuffs against them. This is the first skill rogues should get. It works sort of like Tactical Cloak from Mass Effect 3 where you can deactivate it early and it will have low cooldown.
Poisoned Weapons is there for fun. You can replace it with a Focus Ability. Early in game however, for a melee rogue, Poisoned Weapons is a lot better than Caltrops. Caltrops is primarily designed for Artificer Archer since Caltrops will get the trap bonuses from Artificer.
Cheers. 