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.
Make the best play available with what you have.Track the opponent's rotation after the first cycle.Some RNG is healthy for the game. Unit Targeting and Pathfinding
Another subtle layer of RNG comes from the slight inconsistencies in how the game's AI handles pathfinding.

Leaving a slight margin for error in your defensive placements is the best way to handle AI unpredictability.
Game StyleLevel of LuckDrafting GamesSkill comes from long-term statistical managementStandard Tower RushHighly skill-dependent after the first 30 seconds Embracing the Chaos
Getting angry at a bad starting hand only causes you to make further mistakes and lose the match entirely.

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