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.
Trophy and Rating Systems
Your trophy count is a numerical representation of your skill; win a match, and you take trophies from the loser.

This is why winning streaks inevitably end in a 'wall' of difficult matches; the system is functioning exactly as intended.
There is no 'anti-deck' conspiracy.If you face a hard counter, it is pure statistical variance.It helps them learn before facing real humans. Level-Based Matchmaking
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.
System PriorityWeightCurrent RankThe system will always prioritize finding an opponent within a 50-trophy rangeUpgrade StatusSecondary Priority Maintaining Competitive Integrity
Because the ladder algorithm must balance queue times against fairness, it will never be perfectly balanced.

When levels are equalized, the matchmaking system shines, ensuring that the better player almost always wins.