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

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

By ensuring a healthy mix of low-cost cycle cards, they guarantee they will always have some form of defense.
Flexibility is a skill.Track the opponent’s rotation after the first cycle.It prevents matches from feeling perfectly scripted. Unit Targeting and Pathfinding
While developers strive to make AI as predictable as possible, the physics engine can occasionally create chaotic results.

Relying on a unit’s aggro range down to the exact pixel is risky because tiny bumps can alter their trajectory.
Battler CategoryRNG DependencyDrafting GamesSkill comes from long-term statistical managementStandard Tower RushVery Low - Only the starting hand is randomized The Mental Game
The most important skill regarding RNG is learning how to control your emotions when luck inevitably turns against you.

Focus on improving your timing and placement, and let the RNG sort itself out in the long run.