Guild Wars 2

Im theorycrafting and as Main Weapon using Wand and Artifact

As Sigils I have Sigil of Momentum under Wand and Sigil of Purity under Artifact.

Now my question is to compensate for these missing Sigils on my secondary weapon im using a Staff

What sigil should I place in the staff.

I’m confused. Ele only has one weapon set equipped. You cannot swap weapon during combat.

As an ele you cannot be swapping weapons as other classes (except engi), you just have to deal with the fact you have an access to only two sigils. To compensate you have four attunements that work as a weapon swap, so your sigils on swap will procs when you swap an attunement. You are not currently using those, though, so you just have to worry about what two sigils you pick. It doesn’t matter what you put in staff, because you will only benefit from the sigils on weapons currently equiped and if scepter/focus is your choice, then it will be the ones you put there – momentum and purity.