Every active item has a cooldown that fills during the fight. Four effects change how fast it fills:

| Effect | What it does |
|---|---|
| Haste | The item charges twice as fast for the stated seconds |
| Slow | The item charges half as fast for the stated seconds |
| Freeze | The item does not charge and cannot activate for the stated seconds |
| Charge | Advances the cooldown immediately by the stated seconds |
Flying halves the duration of every Slow and Freeze applied to that item. Some Radiant enchantments, such as Ethergy Conduit’s, make all your items affected by Freeze and Slow for half as long. Karnok’s Enrage clears Slow and Freeze from your items.
Charge in practice
Charge is instant, so Slow, Freeze or Flying cannot reduce it after it lands. A 6-second item that receives Charge 2 each time another item fires needs less of its own timer. Hotfix 19.3 fixed Charge effects that sometimes picked items without a cooldown, which wasted the Charge.
The Hotfix 19.3 Charge rework
Tempo changed a long list of hero skills from “the first X times” to “for every X times”. The old versions gave all their Charges early and then stopped; the new ones keep triggering through long fights. Monster versions kept the stronger old wording.
| Skill | Trigger and result after 19.3 | Before |
|---|---|---|
| Alacrity | Every 4/3 Crits, Charge an item 1 s | First 5/10 Crits |
| Burning Blade | Every 4/3 Weapon uses, Charge a Burn item 1 s | First 4/8 times |
| Flurry of Blows | Every 4/3 Weapon uses, Charge a Weapon 1 s | First 4/8 times |
| Electrified Hull | Every 5/4 Shields, Charge an item 1 s | First 4/8 times |
| Temporal Strike | Every 5/4 Slows, Charge a Weapon 1 s | First 4/8 times |
| Slow Burn | Every 5/4 Slows, Charge a Burn item 1 s; now on all heroes | First 4/8 times |
| Hardly Workin’ | Every 5/4 Slows, Charge a Tool 1 s; now on all heroes | First 4/8 times, Heal or Regen items |
| Righty Tighty | Every 4/3 rightmost-item uses, Slow an item 1 s; now on all heroes | First 3/6/9 times |
| Reverb | Every 4/3 Instrument uses, Charge an item 1 s | First 4/8 times |
| Mixed Message | Every 4/3 non-Weapon uses, Charge a Weapon 1 s | First 3/6 times |
| Bloodhound | Enemy first falls below half Health: Charge your items 1/2 s | 1/2/3 s |
| Lethargy | Now Gold-tier; cooldown increase 1/2 s | 1/2/3 s |
The same pattern applies to Burn Containment, Calming Heals, Coolant Leak, Creeping Toxins, Explosive Potions, Finesse Shield, Flashpoint Corrosion, Flashpoint Ignition, Frozen Secrets, Ice Bullets, Invigorating Blade (added to Mak), Playful Arsonist, Playtime, Shield Bash, Sick Burn, Snowball Fight, Venomous Blade and Workin’ Hard.
Worked example: Temporal Strike in a long fight
Starting condition: Temporal Strike at its upgraded tier (“every 4 Slows”) and a board that Slows 12 times in a 30-second fight.
- Old wording (first 8 times): 8 Charges of 1 second, all before the 8th Slow.
- New wording (every 4): 3 Charges of 1 second, spread across the fight.
The new wording gives fewer Charges at this rate. It matches the old count at 32 Slows and passes it at 36. Builds that Slow a few times early lost Charges; the point of the change was to slow late-game combat.
Items that changed with the keywords
- Patch 18.0 merged most “is Slowed” item text into “When you Slow this”, so Radiant and other Slow-prevention effects interact with it the same way.
- Patch 20.0: Nitro Charges 1/1.5 s instead of Hasting; Sat-Comm Hastes 2 s on a 4-second cooldown; Fiber Optics, Cornucopia, Serving Platter, Scales and Piggles Board Charge 1/1.5 s instead of 1/2.
Sources
- Tempo, Hotfix 19.3 (23 October 2026)Charge skills changed from "the first X times" to "for every X times"; monster skills kept their stronger versions.
- Mobalytics, The Bazaar keywords and terms (updated 11 August 2026)Keyword definitions for Haste, Slow, Freeze, Charge and Flying.
- Tempo, Patch 18.0 notes"is Slowed" effects consolidated to "When you Slow this".
- BazaarDB, Ethergy Conduit (Patch 20.1 data)Radiant enchantment text.
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