[2.1] Crit Buzzsaw - Dagger Version (Ele Crit ST Guide) 40k+ GMP dps with Lightning Pen

This build revolves around Spectral Throw as it's main skill and utilizes extremely fast Whirling Blades attacks for great mobility and some defense (very easy to dodge alot of the incoming attacks.) Our main skill mainly gets its damage from stacking as much lightning damage as possible, through jewels, wrath, herald of thunder and gear. This is important, because this allows us to use Lightning Penetration which bypasses a downside of alot of elemental attack builds, which is fighting against highly resistant mobs. It also works as a great damage multiplier against monsters with little to no resistance.

Sidenote: This build is sort of just a dagger version of Mathils sword crit buzzsaw, which he killed Uber Atziri with.

- Very high mobility
- Spectral Throw hits a large portion of the screen
(- both of the previous points result in high clearspeed)
- Fun to play, since it's such a fast playstyle
- can do most content in the game (Uber Atziri included)
- very safe if you keep your distance

- not very tanky, you can not facetank things that well
- no single target skill, so tanky bosses take somewhat long to kill (compared to blast rain etc)
- somewhat high entry cost to get an actually good character running
- cannot handle reflect very well (Reflect maps are impossible, and if you're unlucky you will die to reflect mobs on -max maps unless you have a really high life pool.

Complete Skill tree at level 91: poeurl.com/vfJ
For a lower level version (lvl 87) you have three options depending on what content you want to do: Drop frenzy charges or ranger life nodes or the nodes after acrobatics

Leveling works best if you have some leveling gear. First of all you want Elreon Rings with as much - to cost of skills as possible so you can use your skills for free. Pick up a wanderlust and some other leveling uniques of your choice and youre good to go.
For the first levels Stormcloud is a very good option, since you will only pick up general crit/speed/dmg nodes. (Your tree will look something like this: poeurl.com/vfK) Pick up the nodes at the ranger start and then head towards the Scion area as soon as possible, to grab the Jewel socket for Static electricity, which greatly increases your dmg in early levels.) At level 10 you can equip a "Night's Hold" Talisman with a green socket. Put a rain of arrows in there and you will be oneshotting packs for a good while. (Feel free to try other skills too, for example Blast Rain at lvl 28)

After you picked up the nodes in thetree shown above, it's pretty much up to you where to go. You can decide to go towards the Dagger nodes in the Shadow area if you have a good dagger to level with, otherwise you can go towards the Duelist to pick up more defense, general damage nodes and some sustain. Duelist might be better but it's up to you.

When you have a decent life pool + regen and your 5L/6L you should swap to Spectral Throw if you haven't yet.

Normal - Oak (40 Life)
Cruel - Kraityn (8% Attack speed)
Merciless - Alira (+1 Power Charge) [You can also choose Kraityn here if you want]

If you can only use a 5L, drop herald of thunder, drop the blood magic gem & spec into the 0.4% life leech + 0.4% mana leech node in the duelist leech cluster.
Using the 5L you can actually sustain Spectral Throw on mana (even 0.4% mana leech will make you hit the mana leeched/sec cap).
On a 6L i haven't succeeded to sustain it on mana yet, when i tried to sustain on mana i ran out of mana on single target after a little bit, which is a big problem. There might be ways to make it work with setups that are a little but different, so i would recommend trying out out yourself if you have a tabula/chest that isnt hard to color.

My jewels are: 2x Static Electricity + 1 Rare Jewel.
Stats youre looking for on the Rare Jewel (buy one with 3 or more of these):
Crit multi
attack speed
life
projectile damage
lightning damage

Short answer: Yes

Long answer: You can definitly do Uber Atziri with this build once you're well geared. But it won't be easy, you will have to be quick with your Whirling Blades to avoid damage. I recommend using LMP for the Uber Atziri Zone. If you want to see how Uber Atziri is done with this Build (or a very similar one at least), look up Mathils Uber Atziri run on his Darkshrines Spectral Throw character.
His build inspired alot of parts in this build.

Q: Is this build cheap? Should i play it without having alot of currency?
A: It's not cheap. If you want an actually good ST char, you're gonna have to invest alot (probably around 7 Ex, more if you want quality gems etc)

Q: Hey didn't you just steal that Frenzy utility setup from Mathil?!
A: Well ... yeah i did. This build takes alot of inspiration from Mathils sword version.

Q: Swords vs Daggers?
A: Daggers provide more crit, swords are better for attackspeed. In the end im not sure which one is better with similar gear, but i don't think they're very far apart. If you want to check out the Sword Version, check Mathils guide here: https://www.pathofexile.com/forum/view-thread/1112278

Q: How good exactly is this build?
A: In my opinion it's not a weak build, but it's not as strong as some of the FotM builds like Poison & Bow builds. It is definitly strong enough to be worth playing, but you will not be facerolling as hard as Voltaxic or Firestorm etc.

Q: Why Blood Magic?
A: Read the newest section called "Important! - Notes on using a 5L / Sustaining on Mana:"