Warden Alchemical Flask In Deadlock: How The Slow, Weapon Damage Debuff, And June 11 Tuning Work

Short answer: Alchemical Flask is Warden’s opening debuff. He throws a flask that damages enemies, slows them, and reduces their weapon damage, then upgrades it into stamina drain, stronger damage reduction, and fire-rate suppression.

Image	Ability
	Alchemical Flask Warden throws a flask that damages, slows, and reduces enemy weapon damage, with upgrades that drain stamina and add fire-rate reduction.

Current Mechanics

Deadlock.one’s current Warden data lists Alchemical Flask with a 12-second cooldown, 5.5m radius, 60 damage with displayed 0.6 spirit scaling, -20 percent move speed, -25 percent weapon damage, 3-second slow duration, and 7-second weapon debuff duration.

That makes Flask the start of Warden’s argument. It does not lock the target down by itself, but it makes the target slower, weaker, and easier to bully into Binding Word range.

Upgrade Path

• 1 AP: hit enemies lose 1 stamina.
• 2 AP: +35 damage and -25 percent weapon damage.
• 5 AP: -7s cooldown, +2m radius, and applies -30 percent fire rate.

The upgrade path turns Flask from poke into a chase starter. Stamina loss punishes escape, the T2 package makes trades uglier for the target, and T3 makes repeated Flask hits feel like a small weather system with a badge.

Key Patch Changes

Valve’s Minor Update – 06-11-2026 reduced Alchemical Flask spirit scaling from 0.73 to 0.63, reduced T2 damage from +40 to +35, and increased T2’s weapon damage reduction from -20 percent to -25 percent.

The same June 11 note also reduced Warden’s bullet falloff from 20m->58m to 18m->47m, which pushes him even harder toward the close-range brawler lane where Flask is meant to matter.

How To Use It

Lead with Flask when you want to make a target fight on worse terms. A slowed, weapon-debuffed enemy has a harder time trading into Warden and a harder time leaving before Binding Word finishes the check.

SwoleBenji’s March 2, 2026 Warden build guide treats Flask as a core pressure and farm tool, especially when paired with damage procs. Deadlock Pro Cast’s April 29 Warden replay guide calls Alchemical Flask a first-priority ability and frames Warden as a frontliner who weakens people before he runs them down.

Counterplay

Do not let Flask become the first step in a longer sentence. If Warden lands it, respect the weapon-damage debuff, spend movement before Binding Word forces a harder escape, and avoid clumping once the radius upgrade is online.

Lore And Context

Deadlock.one summarizes Warden as a brawler who weakens enemies and chases them down. Alchemical Flask is that identity in a bottle: first the debuff, then the chase, then the paperwork.

Sources

Current mechanics, hero context, and icon art were checked against Deadlock.one’s Warden page and the Alchemical Flask modal. Patch context comes from Valve’s June 11, 2026 minor update. Video context comes from SwoleBenji’s Warden guide and Deadlock Pro Cast’s Warden replay guide.

For the wider Deadlock guide shelf, see DramaLock’s best heroes tracker guide, matchups guide, synergies guide, and Street Brawl tier list.