Everything You NEED To Know To Prepare for Hammer Jam 2026!

Hammer Jam Timing

• Hammer Jam is expected to cut building and laboratory upgrade time and cost by 50%.
• Its 2026 dates are unconfirmed. Based on past years and the Clash of Clans World Championship schedule, BDLegend predicts it may run from November 16 through the end of November, with a Town Hall 19 update possibly arriving in early December. These are predictions, not confirmed dates.

Making the Most of Potions and CWL Medals

• Builder Potions become especially valuable during Hammer Jam. With six builders, one normally provides 54 hours of boost; the event effectively doubles that value. Adding the Goblin Builder raises the estimated value to 126 hours per potion.
• Research Potions also gain value. One provides about 47 hours during the event, or 94 hours with the Goblin Researcher’s extra lab slot.
• For 120 CWL medals, the video compares:
  • Four Builder Potions: about 504 hours with the Goblin Builder.
  • Six Research Potions: about 564 hours with the Goblin Researcher.
  • A hammer: up to 384 hours of upgrade time skipped.
• For most developing players, the recommendation is to spend CWL medals on potions rather than hammers during Hammer Jam. Prioritize hero upgrades so your heroes become available sooner. If your heroes are maxed, choose Builder or Research Potions based on which upgrades matter most to you.
• A near-maxed Town Hall 18 player may prefer to save CWL medals for hammers to make progress when Town Hall 19 arrives.

Gems, Helpers, and Passes

Keep the Goblin Builder and Goblin Researcher active throughout the event if possible. Their combined cost for 14 days is estimated at 1,120 gems, and the video recommends having around 2,000 or more available to account for potion use.

Suggested gem-spending order:

1. Keep the Goblin Builder and Goblin Researcher active.
2. Buy Builder Potions if heroes still need upgrades.
3. If gems remain, buy Research Potions, then Builder Potions, from the gem shop.
4. Prioritize any essential hero equipment that cannot be obtained through the Hero’s Journey or events.

The Gold Pass discount combines with Hammer Jam multiplicatively, not additively: 20% off plus 50% off results in a total 60% reduction. The pass also provides potions and other items.

A returning-player bonus may overlap with Hammer Jam, potentially producing a 75% time reduction if both offer 50% off. Eligibility and availability are not guaranteed.

BDLegend advises against investing in helpers solely for short-term Hammer Jam returns. If already unlocked, use the Lab Assistant on the regular lab and focus the Builder’s Apprentice on heroes.

Preparing for Town Hall 19

Don’t try to guess which upgrades will receive time reductions. Keep progressing on upgrades that do not require magic items, and hold books and hammers when practical in case the update reduces upgrade times.

If your magic-item storage is nearly full or you are close to maxing Town Hall 18:

• Save CWL medals for the new Town Hall unless you need potions immediately.
• Consider buying book deals, especially Books of Everything and deals costing $5 or less.
• Skip the November Gold Pass if you are unlikely to benefit from its discounts or have no storage space for its rewards.

The video notes that Hammer Jam is unlikely to solve the game’s ore bottleneck.

Featured Creator and Sources

Featured creator: BDLegend. The video also references Supercell and the Clash of Clans World Championship.