An instruction, once it is used, influences the few following rallies. It can have one or several of the effects below:
- Boost some of your characteristics
- Reduce your opponent’s ones
- Modify your player’s behavior on the court

If the instruction is linked to the service, it activates only when you are serving. The same is true for the return.
But careful, once you use an instruction, there is a cooldown before you can active one again. The cooldown lasts about a set and it is influenced by the characteristic “listening”. It is up to you to determine the best way to use each and every one of the instructions.
Please note that your opponent also has instructions he can use.