If you ask any professional player what the single most important skill in an arena battler is, they will all give you the exact same answer.

Playing the game without knowing how much elixir your opponent has is like playing poker without looking at the cards on the table.
The Economy of Aggression
Every single aggressive action you take in the arena should be dictated primarily by the opponent's current bank of elixir.

Once you know you have a +3 or +4 advantage, you are no longer playing a fair game; you are executing a mathematically guaranteed victory.
Counting elixir tells you if they can afford their heavy spell.If they are at zero, they cannot immediately punish your 6-elixir Elixir Collector investment.It prevents 'over-defending'. Mental Arithmetic Under Pressure
You must train your brain to do it subconsciously, starting with simple approximations before moving to exact numbers.

When they drop a heavy card, like a P.E.K.K. If you have almost any questions about where by and how you can employ tower rush, you'll be able to e-mail us with our internet site. A (7 elixir), tell yourself "They are now Low Elixir."
The Match StageThe MathMental LoadSingle Elixir (First 2 Minutes)1 Elixir every 2.8 secondsEasy to Moderate; plenty of time to calculate trades and track generation in your headDouble Elixir (Final Minute)1 Elixir every 1.4 secondsExtremely Difficult; the math changes so fast you must rely on instinct and 'feel' rather than raw numbers The Invisible Scoreboard
Stop staring at the flashy animations and start focusing on the math.

When you perfectly predict an opponent's inability to defend your push based purely on your mental calculation, you will feel invincible.