Velyna's Explosive Concoction Ascendant (PoE The Forbidden Sanctum 3.20)




Turn your flasks into explosive grenades and blaze a path of destruction, Explosive Concoction Explosive Concoction will consume charges from your topaz and sapphire flasks to deal big chunks AoE elemental damage. This is one of the few remaining skills that can shotgun so we push that AoE as big as we can! Playable at leaguestart very cheaply this build becomes capable of deathless Feared when it is fully built out. Defensively no slouch either, it has a nice amount of evasion/armour with spell suppression and overleech. Nearly ailment immune as well.

Below is a video guide I made for Youtube. This is a good place to start and goes over gearing as well as Pros/Cons. The PoB’s and guide may be more current so make sure to check!



✔️ Damage AND Clear: Because our damage overlaps, we stack a LOT of AoE resulting in nice clearspeed without any hit to boss DPS.

✔️ Easy Leaguestart: Very few required uniques, just running Carcass Jack Carcass Jack and Atziri's Step Atziri's Step for early league.

✔️ Infinite Flasks: The charge generation is insane, if you are like me and just spam flasks constantly it still keeps them full most of the time.


Charges Required: Until you have adequate flask crafts and talents, you will run out on bosses and DPS will drop.

Uncommon Gear: With a small market for the gear we use, it’s sometimes hard to find. This can be fixed by crafting it yourself.

How Does it Play?

Explosive Concoction Explosive Concoction feels like firing 6 grenade launchers at the same time. Mapping is an absolute breeze thanks to free rage generation, 30% increased AoE and overleech from our ascends. Combined with Herald of Ash Herald of Ash the clear becomes nuts with one volley clearing huge groups of enemies.

Damage and Defensive Scaling

Explosive Concoction Explosive Concoction uses no weapon, and instead gives large amounts of flat elemental damage per gem level. This means the absolute best way to get DPS is through level bonuses such as Skin of the Loyal Skin of the Loyal and Empower Support Empower Support. Next in line are penetrate, attack speed, and exposure. Certain generic damage sources like AoE damage, attack damage or elemental damage will also work.

For defense we have defiance banner + Determination and Grace with spell suppression cap. Overleech from Glorious Vanity Glorious Vanity, stun immune from ascend. Ailment immune with crafting.

PoB Imports

The current PoB’s for this build are always available here or on the page linked below:

Pobs and Skills

For help with this build, the best place to ask is my Stream or the PoE Vault Discord.

The Stages

Leaguestart: Used for fresh leagues, or a start with near-zero currency. Its purpose is to get established farming early maps and buying gear for the next stage. Aim to get Atziri's Step Atziri's Step and a Carcass Jack Carcass Jack first, these can carry you far.

Midrange: Our attack is now socketed in Skin of the Loyal Skin of the Loyal . The biggest purchase here is Glorious Vanity Glorious Vanity for Immortal Ambition, make sure the jewel is “of Ahuana” or the keystone granted will be different. Watcher's Eye Watcher's Eye with Precision damage and a Replica Pure Talent Replica Pure Talent are good purchases here.

Endgame: Chestpiece has been upgraded to Skin of the Lords Skin of the Lords with Elemental Overload saving us points on the tree. With these points we have filled out our full cluster setup and added an Impossible Escape Impossible Escape for Wind Dancer. Mana costs should be low enough to add precision and get a watchers eye with precision+determination mods.

Detailed info about gear can be found here:


Ascend, Bandits and Pantheon

A full explanation of bandit, pantheon and ascend choices can be found here:

Ascendancy, Bandits & Pantheon


All of my Leaguestart PoBs contain step by step trees as shown below.

How to League Start

Act 1

Use these setups while working through the acts, then start to match what’s in the Leaguestart PoB after that.

EC is not available until act 3, you can use whatever you like until then but I will show what I did here. Remember to check the gem vendors after quest completions and boss kills, and don’t forget to use all the utility available.

This setup is only used until the end of act 1, at which point it is replaced by:

Act 2

Still running poison concoction, and picking up herald of agony to boost our dps. This should be enough to get us to the end of act 3 where explosive concoction is. Do the quest south of the crossroads, take Survival Secrets jewel reward. Start levelling Elemental Focus and Elemental Damage with Attacks supports in a weapon swap.

Act 3

At the end of this act it becomes possible to switch into EC, and I usually do this right after library. Buy Inspiration and start levelling it.

Act 4-10

This is the setup to end acts and enter maps, after that point you should work to match the Leaguestart PoB gem setup.

Need Help?

I try to give all the information needed to enjoy the build and succeed, but questions do come up. If you need any help with my builds the best place to go is either My Stream or My Discord

You can also check out these handy resources here on the site:

GL out there, Exile!

For any questions or support please join our Discord (PoE-Vault Discord)