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

This article explores how developers design these algorithms to keep queue times short while maintaining a competitive environment.
How You Are Ranked
Your trophy count is a numerical representation of your skill; win a match, and you take trophies from the loser.

When you go on a massive winning streak, your trophy count inflates, and the algorithm begins matching you against significantly better players.
It only looks at your numerical rating.If you face a hard counter, it is pure statistical variance.AI opponents ensure instant queue times for beginners. 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.
Matchmaking FactorImportance LevelElo RatingThe system will always prioritize finding an opponent within a 50-trophy rangeUpgrade StatusSecondary Priority True Fairness
Because the ladder algorithm must balance queue times against fairness, it will never be perfectly balanced.

The algorithm is blind; it only respects victory.