The presence of luck-based mechanics in a strategy game can be both a blessing and a massive frustration.

Understanding exactly where randomness factors into the equation allows top players to mitigate its negative effects.
Starting Hands and Card Rotation
The most prominent RNG element in card-based battlers is the initial four cards you are dealt at the start.

Professional players build their decks specifically to minimize the chances of a truly unplayable starting hand.
Always include at least two cheap defensive options.Try to fix your rotation safely.Accept that sometimes you will lose to a lucky start. Unit Targeting and Pathfinding
Sometimes a unit will retarget unexpectedly due to a micro-movement by another troop, completely ruining your defensive setup.

To counter this, veterans always place defensive buildings in exactly the same specific tiles to guarantee consistent pulls.
Game StyleRandomness ImpactAuto-ChessSkill comes from long-term statistical managementStandard Tower RushHighly skill-dependent after the first 30 seconds The Mental Game
The best competitors accept the chaos, focus on what they can control, and outplay the opponent regardless.

If you are stuck in a lower arena, it is because of your fundamental mechanics, not the random number generator.