Habits
One breath before the big moments
In one line: Before a clutch or a deciding round, take one slow breath.
Why
Under pressure you tend to rush and decide in a hurry. One slow breath gives you a moment to think about what you know and what you need to do, instead of just reacting.
How to train it
When you are the last one alive or a deciding round arrives, breathe slowly once and ask: how many, where, how much time?