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.
Initial Deck Shuffling
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.Know what they are holding.Some RNG is healthy for the game. Unit Targeting and Pathfinding
While developers strive to make AI as predictable as possible, the physics engine can occasionally create chaotic results.

Leaving a slight margin for error in your defensive placements is the best way to handle AI unpredictability.
Genre TypeRandomness ImpactAuto-ChessExtremely High - Relies entirely on shop rolls and item dropsStandard Tower RushMatches are decided by placement, timing, and resource tracking Embracing the Chaos
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.