Random Number Generation, or RNG, is a highly debated topic in almost every competitive video game genre.

However, it still exists in subtle ways that can completely alter the outcome of a very close match.
Starting Hands and Card Rotation
If your opponent rushes the bridge and all your cheap defensive counters are at the bottom of your deck, you lose the tower.

Professional players build their decks specifically to minimize the chances of a truly unplayable starting hand.
Make the best play available with what you have.Track the opponent’s rotation after the first cycle.It adds excitement to the viewing experience. Unit Targeting and Pathfinding
Another subtle layer of RNG comes from the slight inconsistencies in how the game’s AI handles pathfinding.

To counter this, veterans always place defensive buildings in exactly the same specific tiles to guarantee consistent pulls.
Battler CategoryRNG DependencyAuto-ChessExtremely High - Relies entirely on shop rolls and item dropsStandard Tower RushMatches are decided by placement, timing, and resource tracking The Mental Game
Getting angry at a bad starting hand only causes you to make further mistakes and lose the match entirely.

Over the course of a thousand games, the luck factor completely evens out for everyone.