Best Clan War League (CWL) Strategy Guide 2026

Clan War League (CWL) is the most competitive monthly event in Clash of Clans. Every month, clans compete in a round-robin format over 7 days, fighting for league promotions, bonus medals, and bragging rights. Unlike regular clan wars, CWL uses a no-match weight system — meaning your war weight does not matter. You face clans in your same league, regardless of base strength.

This makes CWL both exciting and punishing. A well-organized clan with smart strategy can punch above its weight, while a disorganized clan will hemorrhage stars. This guide covers everything your clan needs to dominate CWL in 2026 — from roster selection to attack assignments to medal distribution.

How CWL Works

Before diving into strategy, let's make sure the mechanics are clear:

Format

• 8 clans are placed in a group within the same league
• Each clan wars against every other clan once (7 wars over 7 days)
• 15v15 format (15 bases per side in most leagues; 30v30 in Champion leagues)
• Each player gets ONE attack per war (not two like regular wars)
• Stars and destruction determine war wins. Total stars across all 7 wars determine final placement
• Top 2 clans promote, bottom 2 clans demote, middle 4 stay

Leagues & Medal Rewards

CC: Medal rewards are based on stars earned (max 8 per player across all 7 wars) AND league placement. Getting 8 stars is the minimum every participant should aim for.

Step 1: Roster Selection

The roster is the single most important decision in CWL. You select 15-30 members (depending on league size) before CWL begins, and you cannot change the roster mid-season.

Choosing the right roster

Who Should Be on the Roster

Include:

• All max or near-max TH players (your strongest attackers)
• Players who attack consistently (reliability > skill)
• Players willing to follow attack assignments
• Lower TH players who need medals (rotate them in on easier matchups)

Exclude:

• Players with a history of missing attacks
• Players who refuse to follow assignments
• Inactive members (even if they have strong bases)

Roster Size Strategy

• 15-player wars: Select exactly 15 strong attackers if everyone is reliable. Select 17-20 if you need rotation flexibility
• 30-player wars (Champion leagues): Fill all 30 slots. Use lower THs for the bottom positions
• Always have 2-3 backup players in case someone cannot attack on a given day

CC: A TH15 who attacks every day is more valuable than a TH18 who misses 2 of 7 attacks. Reliability wins CWL, not raw power.

Step 2: Base Lineup Strategy

In CWL, you choose which 15 (or 30) members to put in the war lineup each day. This is different from the roster — you can rotate players in and out of the daily lineup.

Lineup Principles

1. Front-load your strongest bases. Positions 1-5 should always be your highest TH players with the best defenses. These bases face the toughest opponents.

2. Protect your weakest link. If you must include a lower TH, put them at position 15 (bottom). The opponent's weakest attacker will likely hit them.

3. Rotate medal earners. If a player already has 8 stars (medal cap), consider rotating them out for someone who needs stars. But only do this if it does not weaken your lineup significantly.

4. Match your lineup to the opponent. Before each war, scout the enemy clan. If they have a weak bottom half, you can afford to run a lighter lineup.

War Base Selection

Every player should use a dedicated CWL base — not their farming base.

How to use: Change your CWL base between wars if possible. Opponents can scout your base all day before attacking, so switching bases makes their planning worthless.

Step 3: Attack Assignment Strategy

This is where most clans fail. Without proper attack assignments, you get wasted attacks — strong players hitting weak bases, or everyone piling onto the same target.

Planning your attacks

The Mirror System (Simple but Effective)

The easiest assignment system: each player hits their mirror (same position number on the enemy side).

• Player #1 hits Enemy #1
• Player #5 hits Enemy #5
• Player #15 hits Enemy #15

Pros: Simple, no confusion, fair

Cons: Does not optimize for matchups, weaker players may face hard bases

The Hit-Down System (Competitive Clans)

Better clans use a hit-down-one approach where each player hits one position below their mirror:

• Player #1 hits Enemy #2 (almost guaranteed 3-star)
• Player #2 hits Enemy #3
• Enemy #1 gets 2-starred by your mid-level player

Why this works: You sacrifice the top base (likely a 2-star regardless) but gain more guaranteed 3-stars throughout the lineup.

The Assignment Sheet (Elite Clans)

Top clans use a detailed assignment system:

1. 1Leaders scout all 15 enemy bases before war starts
2. 2Each base is assigned to the player best suited to 3-star it
3. 3Assignments consider: TH level, army specialty, hero availability, base weakness
4. 4Each player gets ONE assigned target with a backup in case someone else already hits it

CC: In CWL, every attack matters because each player gets only ONE. A wasted attack (hitting a base someone already 3-starred) can cost you the entire war by 1-2 stars.

Step 4: Best CWL Attack Strategies by TH Level

In CWL, you need high-percentage 3-star strategies. Save the risky plays for regular wars.

TH18 (Top of War)

Recommended: Root Rider Smash is the safest and most consistent for CWL. Use 7-8 Root Riders, 3-4 Witches, Rage + Heal + Freeze spells.

TH16-TH17 (Mid-Top)

TH13-TH15 (Mid)

TH10-TH12 (Bottom)

How to use: Choose ONE strategy and master it. Being great at one army is far better than being mediocre at three. Practice your chosen strategy in Friendly Challenges before CWL starts.

Step 5: CWL Medal Optimization

Medals are the ultimate reward of CWL. Smart medal management is crucial for progression.

CWL medals and rewards

How Medals Are Earned

• Base medals: Earned by ALL roster members based on final league placement
• Star bonus: 0-8 stars = proportional medals added to base amount
• Bonus medals: Clan leaders distribute bonus medals to top performers (usually 1-2 members per war)

Bonus Medal Distribution

Best Medal Purchases

CC: You can only buy ONE Hammer per type per month. If you have 300+ medals, buy Hammer of Heroes + Hammer of Building. If you have under 165 medals, buy Builder Potions and Research Potions — they give more total value at lower medal counts.

Step 6: Promotion Strategy

Getting promoted means more medals every month going forward. Here is how to push your clan up the leagues.

Climbing the CWL leagues

Short-Term (This Month)

1. 1Win the first 2 wars. Momentum matters — clans that start strong often stay strong
2. 2Never miss an attack. A missed attack is 3 stars handed to the opponent
3. 3Scout before attacking. Spend 5 minutes studying the base. Identify traps, CC range, and hero positions
4. 4Use Clan Chat for coordination. Call your targets early. Announce when you are attacking. Share replays

Medium-Term (3-6 Months)

1. 1Recruit strong attackers. One maxed TH18 who 3-stars every war is worth three TH15s
2. 2Practice with Friendly Challenges. Run FC sessions the week before CWL
3. 3Track performance. Keep a simple spreadsheet of each player's stars per CWL month
4. 4Cut dead weight. Remove players who consistently miss attacks or underperform

Long-Term (Reaching Champion)

1. 1Build a deep roster. Champion League uses 30v30 — you need 30+ strong players
2. 2Develop specialists. Have dedicated LaLo attackers, ground smash players, etc.
3. 3Study meta shifts. When Supercell releases balance changes, adapt your strategies immediately
4. 4Network with other clans. Top clans share strategies and FC opponents

CWL Mistakes That Cost Wars

Mistake 1: Not Using All Attacks

This is the #1 reason clans lose CWL. Every missed attack is essentially giving the opponent a free 3-star advantage. Even a bad 1-star attack is infinitely better than no attack.

Mistake 2: Everyone Hitting #1

When the top enemy base looks "easy," three players pile onto it. Now you have 2 wasted attacks and 2 bases at the bottom with no one to hit them. Use assignments.

Mistake 3: Attacking Too Early

In CWL, you have 24 hours per war. Do not attack in the first hour unless you have scouted the base thoroughly. Wait for clanmates to discuss assignments.

Mistake 4: Using Unfamiliar Armies

CWL is not the time to try a new army composition you saw on YouTube. Use the army you know best and have practiced. Consistency beats flashiness.

Mistake 5: Ignoring the Scoreboard

If you are behind by 10 stars, you need 3-stars to catch up. If you are ahead by 15, safe 2-stars are fine. Adjust your risk level based on the war score.

Mistake 6: Poor CC Troops

In CWL, Clan Castle troops matter. Fill war CCs with strong defensive troops (Super Minion, Headhunter, Ice Golem, Archers). A good CC defense can turn a 3-star into a 1-star.

Mistake 7: Not Rotating Players

If a player already earned 8 stars (medal cap) and you have roster players sitting out, rotate them in. They will earn zero additional medals while the benched player earns nothing.

CWL Calendar & Planning

Before CWL (2-3 Days Prior)

• Finalize roster selections
• Ensure all members have CWL war bases set
• Run Friendly Challenge sessions to practice
• Discuss attack assignment system with leadership
• Ensure CC troops are ready

During CWL (Each War Day)

• Scout opponent bases as soon as war starts
• Assign targets within the first 2 hours
• Coordinate in clan chat — avoid duplicate attacks
• Track stars vs opponent throughout the day
• Ensure all 15 attacks are used before war ends

After CWL

• Distribute bonus medals fairly
• Review performance — who 3-starred, who struggled
• Identify areas for improvement
• Plan recruitment if roster has gaps
• Spend medals wisely (Hammers > Potions > Wall Rings)

Frequently Asked Questions

What happens if a player does not attack in CWL?

Their attack is lost — there is no cleanup mechanic. The war counts with fewer total attacks for your clan, which almost always results in a loss. This is why reliability is the most important factor in roster selection.

Can I change my war base between CWL wars?

Yes! You can and should change your war base between each of the 7 wars. Opponents can scout your base during preparation day, so changing it forces them to re-plan.

How many stars do I need to get maximum medals?

8 stars across all 7 wars. After 8 stars, additional stars do not increase your personal medal count (but they still help your clan win).

Is it better to be at the top of a lower league or bottom of a higher league?

Higher league, always. Even the bottom placement in Master III gives more medals than 1st place in Crystal I. Push for promotion whenever possible.

Should we run 15v15 or 30v30?

15v15 is available in all leagues. 30v30 is mandatory in Champion leagues. If you have 30 reliable attackers, 30v30 gives more total medals to your clan. If you struggle to fill 15 reliable slots, stick with 15v15.

What Clan Castle troops should I use for defense in CWL?

The best defensive CC in 2026: Super Minion + Headhunter + Ice Golem (for ground support). Super Minion is extremely hard to deal with and shreds hero dives. Headhunter targets enemy heroes directly.

Find the perfect war base for CWL in our base layout collection, and check out our attack guides:

• TH18 Attack Strategies
• TH17 Attack Strategies
• TH16 Attack Strategies
• Best Army Compositions

Now go lead your clan to Champion League, Chief.