Warden · Ability 1 · 12s cooldown
Alchemical Flask
Updated ·Refreshed daily from public match data·Methodology
HeroWarden →What does Alchemical Flask do in Deadlock?
Alchemical Flask is Warden's ability 1 on a 12-second cooldown with 0.1s cast delay, 60 damage, 3s slow duration. Throw a flask that damages and reduces the weapon damage and move speed of enemies it hits.
Upgrades: 1 AP — Hit enemies lose 1 Stamina; 2 AP — +35 Damage and -25% Weapon Damage; 5 AP — -7s Cooldown and +2m Radius Applies -30% Fire Rate.
In the most played Warden skill order (49.2% win rate over 11K games), Alchemical Flask takes its first point at step 1 and gets 4 of the first 12 points, making it the first ability players max.
Full numbers below; for items and lane matchups see the Warden build, or compare cooldowns on the all-abilities table.
Base values, before items
Alchemical Flask stats
Cooldown
12s
Cast Delay
0.1s
Damage
60
Slow Duration
3s
Weapon Debuff Duration
7s
Move Speed
16%
Ability points
Alchemical Flask upgrades
- 1 AP
Hit enemies lose 1 Stamina
+1 Stamina Reduction
- 2 AP
+35 Damage and -25% Weapon Damage
+35 Damage · -25% Weapon Damage
- 5 AP
-7s Cooldown and +2m Radius Applies -30% Fire Rate
+30% Fire Rate · -7s Cooldown · +2m Radius
Most played Warden skill order
When to level Alchemical Flask
In the most played Warden skill order (49.2% win rate over 11K games), Alchemical Flask takes its first point at step 1 and gets 4 of the first 12 points, making it the first ability players max.
Alchemical Flask patch history
Minor Update - 09-16-2026 · September 16, 2026
- – Alchemical Flask projectile range and speed reduced by 30%
Minor Update - 06-11-2026 · June 12, 2026
- – Alchemical Flask spirit scaling reduced from 0.73 to 0.63
- – Alchemical Flask T2 reduced from +40 Damage to +35
- – Alchemical Flask T2 increased from -20% Weapon Damage to -25%
Gameplay Update - 03-06-2026 · March 6, 2026
- – Alchemical Flask Weapon Damage reduction reduced from -30% to -25%
- – Alchemical Flask T2 damage increased from +36 to +40
- – Alchemical Flask T2 now also increases Weapon Damage Reduction by -20%
- – Alchemical Flask T2 no longer increases radius by 1m
- – Alchemical Flask T3 cooldown increased from -6.5s to -7s
- – Alchemical Flask T3 now also increases radius by 2m
11-21-2025 Update · November 21, 2025
- – Alchemical Flask radius reduced from 6.5m to 5.5m
- – Alchemical Flask T2 now also grants +1m
Other Warden abilities
Slow · Mobility
Abilities like Alchemical Flask
FAQ
What is the cooldown of Alchemical Flask?＋
Alchemical Flask has a 12-second base cooldown before cooldown items or upgrades. One of its upgrades lowers it further — see the upgrade list above.
What are the Alchemical Flask upgrades?＋
1 AP: Hit enemies lose 1 Stamina 2 AP: +35 Damage and -25% Weapon Damage 5 AP: -7s Cooldown and +2m Radius Applies -30% Fire Rate
When should you level Alchemical Flask?＋
In the most played Warden skill order (49.2% win rate over 11K games), Alchemical Flask takes its first point at step 1 and gets 4 of the first 12 points, making it the first ability players max.
Which hero has Alchemical Flask?＋
Alchemical Flask is Warden's ability 1. Warden is a brawler whose other abilities are Willpower, Binding Word, Last Stand.