I need help with skript

[SuccoDiFrutta]

Basically when a player kill the same player 5 times he cannot kill him again for 5 minutes

[rosabel]

Create a variable named counter, unique to a player's uuid. For convenience, I highly suggest using a RAM variable for these things. If you don't know what a RAM variable is, check this out: https://forums.skunity.com/threads/skript-variables-ram.5865/

With that out of the way, increase the counter by 1 each time they kill a player. Once it has reached 5, set the player to a variable named 'Cooldown' set 'Cooldown' to 'now'. When the player kills, check for if the difference between your 'Cooldown' variable and now is more than 5 minutes. If it is, reset the 'Counter' variable. If it's not, cancel event.

And... there you go! With enough effort, you can bring this to life.