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.

You are making critical strategic decisions based entirely on blind hope rather than solid mathematical reality.
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.

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.If you know they have zero elixir, you don't need to spend 4 elixir to defend a dying 1-elixir skeleton. Practicing the Count
Start by simply categorizing the opponent into three states: 'High Elixir' (7-10), 'Medium Elixir' (4-6), and 'Low Elixir' (0-3).

When they drop a heavy card, like a P.E. Here's more about tower rush have a look at the internet site. K.K.A (7 elixir), tell yourself "They are now Low Elixir."
Elixir StateStrategic ResponseYou 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 The Invisible Scoreboard
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.