Guild Wars 2

Assuming Condi build with:

(1) Pistol Shield
(2) Nades
(3) Elixir Gun
(4) Bomb

What should my main weapon that I use, for example, to auto-attack? And is bomb preferred over wrench?

Elixir gun is the preferred weapon to autoattack, but youll hardly ever have the chance to autoattack due to all the skills you have available to you, rarely is it a good idea to auto attack. Bomb, toolkit, nades, EG, and FT can all be used in a triple kit condi. Its up to the players preference. I prefer nades/toolkit/eg

Ahh, so what are the main use of grenades?

Seazen.7415:

Ahh, so what are the main use of grenades?

Every skill except the auto attack

Nades are viable for autoattack even in a condi build because of the trait “Shrapnel” which is a 45% (15%*3) chance to apply 15s of bleeding on every autoattack. Also, if you invest in Firearms, you have an additional chance to apply bleeding on each critical hit anyways, and nades are 3 chances per hit.

It also stacks vulnerability the best in the game, not only increasing your own overall damage, but also your team.

Also, Nades are AoE.

Still, Elixir Gun is good if you want to maintain weakness on foes. But the condi duration doesn’t compete with grenades spam.

As for your bomb question, it IS preferred over wrench due to access to a fire field, and the ability to use 3 blast finishers in your current build. (Elixir Gun #4, Big Ol’ Bomb, and Magnetic Shield #4 skill). This gives you AND your team might, increasing your overall damage, but also your condi dmg as well.