The matchmaking algorithm is the unsung hero that determines exactly who you will face every time you press the 'Battle' button.

Many players believe that matchmaking is intentionally rigged against them, constantly forcing them to fight 'hard counters' after a win streak.
The Elo System Adapted
The algorithm's primary goal is to match you against someone with the exact same—or very similar—trophy count.
This is why winning streaks inevitably end in a 'wall' of difficult matches; the system is functioning exactly as intended.
- The algorithm does not care what deck you are playing.
- With millions of players, you will occasionally draw a bad matchup.
- In the lower arenas, the system often includes 'bots'.
The Problem of Card Levels
The standard Elo system works perfectly for chess because all pieces are equal, but tower rush games feature upgradeable cards.
To combat this, developers have implemented secondary checks that look at the player's King Tower level.
| Conspiracy Theory | How it Actually Works |
|---|---|
| Rigged Matchmaking | The algorithm does not force losses; you are simply playing tilted against harder opponents because your MMR is inflated |
| Anti-Strategy Code | Developers have confirmed repeatedly that the algorithm does not read the contents of your deck when finding an opponent |
True Fairness
This is why all true esports tournaments and competitive challenges utilize the 'Tournament Standard' ruleset.
When levels are equalized, the matchmaking system shines, ensuring that the better player almost always wins.