Your deck composition is the foundation of your entire success; a poorly constructed deck will fail regardless of your mechanical skill.

Many beginners simply throw all their favorite, highest-level, or flashiest legendary cards into one deck and hope for the best.
The Core Components
Missing even one of these crucial components will leave a gaping hole in your strategy that smart opponents will exploit.

If your deck has three different win conditions, it is too heavy; if it has none, you will never actually take a tower.
Examples: Hog Rider, Giant, or Miner.Spells provide guaranteed value.Flying units will destroy you otherwise. Balancing Your Elixir Average
The average elixir cost of your deck dictates exactly how fast you can play cards and cycle back to your win condition.

If your deck is too heavy, you will sit defenseless while the opponent chips away at your towers with cheap, fast attacks.
Deck ArchetypeElixir RangeProsControlVery CheapIncredible defensive flexibilityGolem3. If you want to learn more in regards to tower rush check out our page. 8 - 4.5Absolutely unstoppable in double elixir Refining the Formula
Take notes on exactly what types of decks completely shut you down, and adjust your support cards accordingly.

Deck building is an iterative, constantly evolving process that requires patience and an understanding of the current meta.