The Ultimate Magic Items Progression Guide
In Clash of Clans, progression is a resource-management game. While collecting Gold, Elixir, and Dark Elixir is important, managing your Magic Items is what separates casual players from elite, hyper-efficient builders.
Using magic items at the wrong time wastes weeks of active builder time. This guide breaks down the mathematics of progression skips, CWL Medal spending, and farming priorities to ensure you get maximum value from every Book, Hammer, Rune, and Potion.
1. Hammers vs. Books: The Mathematical Divide
The absolute gold rule of progression efficiency: Hammers save resources AND time, while Books ONLY save time.
| Item Type | Unlocking Cost | Resource Cost Saved? | Time Saved? | Best Use |
|---|---|---|---|---|
| Hammer of Building | 120 CWL Medals | YES | YES | 14+ Day Upgrades (Eagle, Town Hall) |
| Hammer of Fighting | 120 CWL Medals | YES | YES | High DE Troops (Electro Titan, Golem) |
| Book of Building | Event / 925 Gems | NO | YES | When resources are capped & builders are busy |
| Book of Heroes | Event / 500 Gems | NO | YES | High-level Hero upgrades (King/Queen 90+) |
Hammer Allocation Math
A Hammer of Building costs 120 CWL Medals. If you spend those medals on Builder Potions instead (which cost 15 Medals each, saving 9 hours per builder), 120 Medals gets you 8 Builder Potions:
8 Potions * 5 Builders * 9 Hours = 360 Hours (15 Days) of total builder time.- If you have 6 builders (O.T.T.O unlocked):
8 * 6 * 9 = 432 Hours (18 Days) of builder time. - Conclusion: If your target upgrade is greater than 15 days, buying a Hammer of Building is mathematically superior. If the upgrade is , buying Builder Potions is more efficient.