With the Freria event just around the corner, Path of Exile players are already deep into theorycrafting. While ascendancy changes haven't been fully revealed yet, a surprising amount of powerful Vaal skill technology already exists in the current game—and Freria is set to amplify it even further with cheap POE currency.

This article breaks down some of the most promising Vaal skill interactions you can prepare for, focusing on Behemoth, Architects of Chaos with Chaos Bloodline, and Harbinger ascendancies.

Behemoth Ascendancy: Permanent Adrenaline via Vaal Skills

The Behemoth ascendancy is widely expected to receive major buffs in the upcoming patch. Currently, it sees little play due to its harsh downside—blocking spell usage—but its Rage-based mechanics open the door to extremely strong Vaal skill interactions.

Rage-to-Vaal Conversion Tech

One Behemoth node allows you to:

Spend Rage instead of Souls for Vaal attack skills

Gain additional maximum Rage

Increase Rage cost of Vaal skills

This effectively mimics a toned-down version of Hateforge.

Foul Vow Caress + Vaal Ground Slam

By combining this node with Foul Vow Caress, which grants Adrenaline for 3 seconds when using a Vaal skill, you unlock a powerful loop:

Use Vaal Ground Slam (low soul cost, 1-second soul gain prevention)

Spend Rage instead of Souls

Instantly gain Adrenaline on use

Regain Rage almost immediately after

Why this matters:

Adrenaline provides:

100% increased damage

25% increased movement, attack, and cast speed

10% additional physical damage reduction

With this setup, Adrenaline can be maintained almost permanently—even during boss fights—without relying on soul generation.

This tech's viability will depend heavily on how Behemoth is adjusted in the patch notes, but its potential is undeniable.

Architects of Chaos + Chaos Bloodline: Chaining Vaal Cold Snap

One of the most exciting pieces of returning tech revolves around Vaal Cold Snap, a skill that can be chained continuously with the right setup.

Core Interaction: Shepherd of Souls

The Architects of Chaos ascendancy provides:

80% less soul cost for Vaal skills

Increased soul cost only if multiple Vaal skills are used within 8 seconds

By extending Vaal Cold Snap's duration beyond 8 seconds, you completely avoid the downside while keeping the massive cost reduction.

Soul Cost Breakdown

With Fever of Corruption:

Base soul cost reduced from 35 → 18

80% less soul cost brings it down to 4 souls per use

One full soul charge allows 8 consecutive casts

With enough duration scaling, Vaal Cold Snap becomes a near-permanent aura-like effect, similar to Righteous Fire, clearing maps effortlessly.

Chaos Bloodline Choices: Customizing Your Vaal Cold Snap Build

Chaos Bloodline introduces three powerful notables, each enhancing this setup in a different way.

Priest of Yaoac – Maximum Duration

Reduced soul cost

20% chance to regain consumed souls

Synergizes perfectly with Atziri's Reign

This option allows:

Up to 15 consecutive Vaal Cold Snap uses

Over 2 minutes of uptime in a single chain

Ideal for large or awkward map layouts.

Priest of Copek – Balanced Damage and Duration

Adds +1 Vaal skill use

Allows storage of 70 souls instead of 35

Results in around 10 chained uses

This is a middle-ground option, offering slightly more damage while maintaining strong uptime.

Priest of Kamasa – Endgame Efficiency

50% increased Vaal skill duration

50% increased area of effect

This choice:

Removes the need to invest heavily in duration passives

Saves up to 8 passive skill points

Greatly improves clear speed and build flexibility

Best suited for well-geared characters transitioning into endgame mapping.

Harbinger Ascendancy: Permanent Vaal Auras

The Harbinger ascendancy introduces one of the most powerful Vaal interactions in the game:

Buffs on you expire 30% slower

Stacked with Rune Graft of the Warp, this becomes 60% slower buff expiry.

Crucially,with POE currency,slower buff expiry does not affect soul gain prevention—creating massive uptime windows.

Vaal Grace & Vaal Haste

With minimal investment:

Vaal Grace can provide 9-second soul recovery windows

Vaal Haste can be sustained almost permanently

Adding skill effect duration scales uptime even further

Vaal Clarity: Near-Constant Zero Mana Cost

Base duration: 10 seconds

Effective duration with slow expiry: 25–37 seconds

Extremely easy to sustain permanently

This opens up significant mana abuse potential for many builds.

Vaal Smite: Long-Lasting Global Damage Boost

Vaal Smite already has strong uptime, but with Harbinger tech:

Base uptime jumps from 8 → 20 seconds

With duration scaling: 30–45 seconds

A powerful, low-maintenance damage boost for many archetypes.

Final Thoughts

Even before patch notes arrive, it's clear that the Freria event will heavily favor Vaal-focused builds. Whether it's permanent Adrenaline, endless Vaal Cold Snap chaining, or near-permanent Vaal auras, the mechanical depth available is enormous.

While numerical values may change, ascendancy identities are likely to remain intact—making this the perfect time to start planning builds and testing interactions.

Patch notes should arrive soon, and once they do, full theorycrafting can truly begin. Stay ready.