Chapter I. Pros and Cons.
Chapter II. Defensive Layers
Chapter III. Videos!
Greetings and welcome to my long ass guide. I have detailed sections for absolute beginners but the build ends with some very aspirational gear challenges.
Build will look like this. Let’s get you guys what you want right now:
Basic Gear + Skills Bladedancer, Level 100 (LE Beta 0.8.4g) - Last Epoch Build Planner
(we can’t afford 100% Crit Avoidance, which is why Acid Flask will Blind on hit and it will be dropped at the end of Shift, always; it has50% chance to cast Acid Flask on the start of Shift as well; once Blinded mobs have only half the chance to Crit you, which is better than 100% chance to get crit)
End game dream setup + Skills Bladedancer, Level 100 (LE Beta 0.8.4g) - Last Epoch Build Planner
We don’t need the Blind chance anymore. Acid Flask is even more useful now. Attack Speed is still king, with a whopping 3.13 attacks per second (mind you, calculating the real number of attacks of Flurry is hard; base attack rate of 1.276, the Channel node only removes some animations, I assume there is a natural delay between attacks; basically you attack a lot OK?)
Now we can delve into deeper mechanics to explain how the build performs. I went hard on the details, so feel free to skip what you already know.
Chapter I. Pros and Cons
Pros:
-cheap to start, needs maybe 1 pair of Winguards, a Unique Glove of Common rarity
-feels great to invest in
-great Mono farmer, decently fast
-an even better Arena farmer! (very few Boss level fear of 1 shots, great number of mobs to sustain from, great defense versus many small hits)
-great sustain from Leech (which the build will take to newer, more impressive heights!)
-build to push deep (especially with investment into better Uniques)
-we automate most things, we get Acid Flask and the eternal Shurikens for Armor on Shift, so we just need to press that, Flurry and drop Smoke Bomb for some Poison Shred
Cons:
-Flurry is an old skill, lacks the polish of newer skills (boring synergies, mandatory and expensive point allocation to make it feel good)
-Some real end game Uniques will be challenging (Bastion is, ha ha, a must 
but we embrace it and build around it quite a bit!)
-Boring for some, the build just needs 3 buttons; you can squeeze in Synchronized Strike, especially for the ARPG fans: it is an i-frame, a split second of total invulnerability; even with 0 points, costing a boat of mana and having a 10 second CD, it can be a life saver; if you want to master piloting this build to insane difficulties, you have to include it on your bar
-This could be a Pro for some, but getting the right Legendaries (Uniques with the right Legendary Potential and the right Exalted stats on them) is gonna be tough but very rewarding; Poison is an absolute BANGER of a scaler, it can go for miles
Why Poison? Flurry is a great applicator of Bleed and Poison, the Skill has synergies. It grants us 30% More Damage for Poison. Well, for Bleed as well, in fact a Ruby Dice Relic (Fire resistance and Bleed Chance %) is a perfect substitute once the build does respectable damage. So we get a decent More multiplier for Poison and any Bleed chance we got, works on that as well. You channel the skill, but the mana cost with the Points I allocated makes it easily manageable. I never just ran OOM before I had to dodge something so far.
Damage will get a lot better once I get a T6 Attack Speed on some Winguards. I missed it and got 66 Armor. I will also fit in the Poison Shred Chance, yes, I run around without that for now.
Chapter II. Defensive Layers
The secret to a well rounded build is always how it handles not dying. There, I said it. You could do trillions of damage in Last Epoch, the game is slower paced, thank God, so something will always reach you, there is no 3 screen wide 1 button delete. Mobs can scale wickedly hard (read it in a Boston accent) and bosses have challenging mechanics and sometimes phases, so don’t expect it to take 4 seconds flat.
We need to tick the following:
-100% Crit Immunity (Woven Flesh, done)
-High Dodge (% Dodge is better than flat here, since Dusk Shroud gives us 50 flat Dodge; makes % slightly more valuable, but check it with lastepochtools to be safe for your level of gear)
-High Endurance % (remember, the cap here is 60%, we need an Empowered Monolith Blessing to cap without sacrificing any Suffix on gear - greedy of me, basically)
-High Block chance and Block Effectiveness (even with an Ironglass Shield, if rolled right, you will have a total of 49% block chance with 39% effectiveness; basically half the hits, spells or melee/ranged attacks, will hit for quite less); once you get Bastion, you keep the SAME setup, T5 or T6 on Rings for massive Effective Health
-Leech; we use leech to instantly top up again; starts timid, but once you get a decent Bleeding Heart, that Leech % applies to everything, melee hits but also Poison damage; so when your ticks are 20k on mobs, it tends to mean a LOT of leech;
Leech mechanics: damage considered leeched (% Damage Leech in our case, Melee Leech is completely negligible) is divided evenly over 3 seconds, 3 ticks; the amount is simply whatever % you got (end game gear uses Bleeding Heart which leeches off any damage), multiplied with effective damage done to a Mob (so minus mob Resists, armor, general Damage Reduction and so on); increased leech rate shortens the 3 seconds timer (either distance between ticks or overall the 3 seconds, I don’t know the exact calculations), but we get on average 150% increased leech rate from gear and it shows, we top off immediately. This is accompanied with 14 Life on Hit from our Dagger, +2 from the Flurry tree and the 36 Health on Glancing Blow (with great gear, you get 100% GB). Life on Hit is for scaling back up above Endurance Threshold really (20% of our max HP) so the Endurance % kicks in and prevents another 1 shot.
Total Leech: Bloody Revelry (+2%, +4%, +6% generic leech from Flurry for each strike respectively) + ~7% Leech from Bloody Heart, 150% Increased Leech Rate, we get 20-40% Increased Damage Leeched (ZERO clue what this means, paging a Dev), and +2%-4% Overkill Leech (which is great as an added bonus versus many small mobs, once they die their HUGE Poison Ticks will add 2-4% extra Leech)
Chapter III. Videos!
I will include progress videos. In fact most of my stuff is pre-Bastion. But it will take me a couple of days to record my attempts at killing the build. Sorry to disappoint for now.
Blessing the Bastion. Julra 3 Run (no Poison Shred Blessing)
For advanced, experienced Players (or “something new to learn” for the rest)
I did the math using Tunk’s EHP Calculator and this is kind of what to expect really end game:
For others that want to tinker with this tool, it’s really easy to use. You can access it here: EHP Calculator
Please ask alllllll the questions that come to mind. So far I got 90% of what I need in terms of gear, so I pushed 260 Corruption with about 190-200% Increased mob damage (speed and crit, health and damage, that kind of thing). This was before Bastion and without 100% GB, I will have to throw myself to some Julra 4s. It might make it.
This is an amazing community to contribute to. Shoutout to @perrythepig and @Amarathy for being very creative build creators that inspire my little obsession with making my own builds. I would also like to rep my man @QuietForMe and @ArtCrusader for contributing greatly to my understanding of the game so far and how to shape a build.
You guys are pretty much great.
Guess I have to see what solution I find…