What if the secret to dominating your next Clan War isn’t about having maxed heroes or the latest siege machine—but choosing the right troop upgrades at the right time? In Clash of Clans, the Laboratory is your gateway to unlocking devastating attack power. But with dozens of troops and spells vying for your precious research time and resources, a single misstep can set your progress back weeks. Are you upgrading wisely—or just following the crowd?
This guide dives deep into the art and science of smart troop upgrades. Whether you’re a casual farmer, a war enthusiast, or a competitive pusher, understanding the nuances of upgrade choices can transform your offensive game and help you outpace your rivals.
Upgrading troops isn’t just about increasing damage or hitpoints. It’s about unlocking new attack strategies, countering evolving defenses, and staying one step ahead in both multiplayer and Clan Wars. A single level on a key troop can mean the difference between a three-star victory and a frustrating one-star attempt.
Example: At Town Hall 9, upgrading your Hog Riders from level 4 to 5 increases their DPS by 11%, but more importantly, it allows you to take on max-level Wizard Towers with greater confidence, opening up powerful Hog-based war attacks.
Some upgrades unlock entire strategies. Upgrading Balloons may not just benefit LavaLoon, but also hybrid attacks like LaLoonion or even Queen Charge Lalo. Smart upgrades multiply your attack options, making you unpredictable and adaptable.
Why: Farming is the backbone of your progression. Upgrading Barbarians, Archers, and Giants early ensures efficient resource collection, which fuels all other upgrades.
Example: At lower Town Halls, maxed BARCH (Barbarian-Archer) can out-farm even more advanced armies due to low cost and quick training times.
Tip: Don’t overlook the value of Goblins for Dark Elixir raids, especially at TH8-TH10.
Why: Troops central to the meta at your Town Hall level should be prioritized. For TH9, this might mean Hogs and Witches; for TH10+, Bowlers, Miners, or E-Dragons.
Data Insight: In competitive wars, clans with maxed core attack troops consistently achieve higher star averages, even when heroes are under-leveled.
How to Decide:
Why: Spells can make or break an attack. Upgrading Rage, Heal, or Freeze spells often provides more value than a single troop level.
Comparison: A level 6 Heal Spell at TH10 restores 30% more HP than level 5—this can be the difference in keeping your Hogs alive through Giant Bombs.
Pro Tip: Upgrade spells that support your main attack army. If you’re a Queen Charge player, prioritize Rage and Freeze.
Why: Troops like Wall Breakers, Wizards, or Valkyries may not be the centerpiece of every attack, but their effectiveness at higher levels can enable advanced tactics or hybrid armies.
Player Insight: Many top war clans recommend maxing Wall Breakers early at each TH level. A failed wall break can doom an attack, regardless of your main army.
Not always. While offensive upgrades are crucial, neglecting key defensive or hero upgrades can leave you vulnerable. The ideal approach is a balanced progression, but with a strong lean towards offense—especially if you’re active in wars or Clan Capital Raids.
Rule of Thumb:
A dormant Laboratory is wasted potential. Plan your upgrades so you always have enough Elixir or Dark Elixir to start the next research as soon as the current one finishes.
Example: If your next key troop upgrade requires Dark Elixir, avoid spending it all on hero upgrades at the same time.
The meta shifts with each update. Stay informed on which strategies are dominating at your level. For example, Super Archer Blimp and Electro Titan attacks have surged in popularity at high Town Halls—upgrading these troops early can give you a competitive edge.
At TH12+, Siege Machines are game-changers. Upgrading the Stone Slammer or Siege Barracks can dramatically boost your attack options and success rates.
Save Book of Fighting or Book of Spells for high-impact upgrades—typically your most-used war troop or spell. Don’t waste them on niche upgrades unless you’re pushing for a specific strategy.
Maximizing your offensive potential isn’t about blindly maxing every troop—it’s about making smart, strategic choices that align with your goals and playstyle. By prioritizing core farming and war troops, supporting them with essential spells, and adapting to the ever-evolving Clash meta, you’ll unlock more three-stars, climb higher in leagues, and contribute more to your clan’s success.
Remember: Every upgrade is an investment. Make each one count, and you’ll soon find yourself leading the charge in every raid and war. Keep learning, stay adaptable, and never let your Laboratory sit idle—your path to offensive dominance starts now.