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Deadlock Tiers

Calico · Ability 1 · 14s cooldown

Gloom BombsGloom Bombs

Throw a cluster of bombs that detonate after a delay, dealing spirit damage. Enemies hit by multiple bombs take 65% damage.

Updated ·Refreshed daily from public match data·Methodology

CalicoHeroCalico →

What does Gloom Bombs do in Deadlock?

Gloom Bombs is Calico's ability 1 on a 14-second cooldown with .15s cast delay, 45 damage, 4 bomb count. Throw a cluster of bombs that detonate after a delay, dealing spirit damage. Enemies hit by multiple bombs take 65% damage.

Upgrades: 1 AP — -3s Cooldown; 2 AP — Per Bomb Touch : -6% Melee Resist for 6s; 5 AP — +3 Bomb Count.

In the most played Calico skill order (54.5% win rate over 25K games), Gloom Bombs takes its first point at step 2 and gets 4 of the first 12 points, making it the third ability players max.

Full numbers below; for items and lane matchups see the Calico build, or compare cooldowns on the all-abilities table.

Base values, before items

Gloom Bombs stats

Cooldown

14s

Cast Delay

.15s

Damage

45

Bomb Count

4

Lifetime

.75s

Ability points

Gloom Bombs upgrades

  1. 1 AP

    -3s Cooldown

  2. 2 AP

    Per Bomb Touch : -6% Melee Resist for 6s

    -6% Melee Resist · +6s Melee Resist Reduction Duration

  3. 5 AP

    +3 Bomb Count

Most played Calico skill order

When to level Gloom Bombs

1Leaping Slash
2Gloom Bombs
3Ava
4Ava
5Ava
6Return to Shadows
7Return to Shadows
8Return to Shadows
9Return to Shadows
10Gloom Bombs
11Gloom Bombs
12Gloom Bombs

In the most played Calico skill order (54.5% win rate over 25K games), Gloom Bombs takes its first point at step 2 and gets 4 of the first 12 points, making it the third ability players max.

Gloom Bombs patch history

Minor Update - 06-11-2026 · June 12, 2026

  • – Gloom Bombs melee resist debuff now stacks additively
  • – Gloom Bombs T2 increased from -5% Melee Resist for 5s to -6% for 6s
  • – Gloom Bombs melee resist now applies on impact rather than explosion

Gameplay Update - 03-06-2026 · March 6, 2026

  • – Gloom Bombs changed so the first grenade always lands in the middle
  • – Gloom Bombs projectile sticky radius increased from 10 to 15
  • – Gloom Bombs cast delay reduced from 0.15s to 0.1s
  • – Gloom Bombs T2 changed from +16.2 damage to +75 bonus damage vs barriers
  • – Fixed Gloom Bombs T2 giving an extra +15 flat bonus (released a couple days ago)

11-21-2025 Update · November 21, 2025

  • – Gloom Bombs cooldown increased from 12s to 14s

Other Calico abilities

FAQ

What is the cooldown of Gloom Bombs?+

Gloom Bombs has a 14-second base cooldown before cooldown items or upgrades. One of its upgrades lowers it further — see the upgrade list above.

What are the Gloom Bombs upgrades?+

1 AP: -3s Cooldown 2 AP: Per Bomb Touch : -6% Melee Resist for 6s 5 AP: +3 Bomb Count

When should you level Gloom Bombs?+

In the most played Calico skill order (54.5% win rate over 25K games), Gloom Bombs takes its first point at step 2 and gets 4 of the first 12 points, making it the third ability players max.

Which hero has Gloom Bombs?+

Gloom Bombs is Calico's ability 1. Calico is a assassin whose other abilities are Leaping Slash, Ava, Return to Shadows.