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 Elixir Advantage
However, if you launch that exact same 8-elixir push when you know the opponent has only 2 elixir, it is mathematically impossible for them to stop it.

You create an advantage by making positive defensive trades (e.g. If you have any thoughts concerning wherever and how to use tower rush, you can make contact with us at the website. , using a 3-elixir Arrows to kill a 5-elixir Minion Horde).
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'. Practicing the Count
Tracking a constantly shifting number in your head while managing complex micro-interactions on the screen is incredibly difficult for beginners.

As you get comfortable with this broad tracking, start actually doing the math: "They started at 10, played a Golem (8), so they are at 2, plus two seconds of generation, they are at 3."
Elixir StateYour Required ActionYou have a massive Elixir Advantage (+4)Immediate, overwhelming aggression; punish their lack of resources before they can regenerateYou have a massive Elixir Deficit (-4)Immediate, flawless defense; sacrifice tower health if necessary to regain economic parity; do NOT attack Mastering the Economy
Tower health is a deceptive metric; you can have full tower health and still be losing the game if you are down 5 elixir.

Knowledge is power.