Guild Wars 2

I played Ele to lvl 30 and then used the booster to get to lvl 80 thinking that I could unlock tempest, but then I realized I need a lot more hero points to fully unlock it.

So now I have to stick with normal Ele builds, I prefer D/D because the spell cast is faster compared to Staff, and so I stumbled upon this build: http://metabattle.com/wiki/Build:Elementalist_-_Dagger/Dagger

Is this build still valid? If not are there any other suggestions?

Its a PvP build no longer possible.
But in PvE and WvW it still works. Focus is prefefered over offhand dagger for more defence. Mobility suffered due to ride the lighning nerfed.
You need a lot swaping or use traveler rune which is a very good one here.

Outdated build. Read the top explanation.

Right now I’m only doing PvE and WvW, but curious why you said it’s no longer possible? Those sigils lost their effects?

I will find a D/F build as per your recommendation.

The reason that build can’t be used any more is because celestial amulet and durability runes were completely removed from pvp. You could still use that stat combo and the rune in other areas of the game however you won’t be able to access them till level 80. For leveling anything can work. Air is very nice for the movement speed buffs damage and fresh air once you can get that. Arcane provides nice utility and is generally fun, then fire is for damage or water for more survivability. Earth isn’t really useful out side of pvp.