I have a scoreboard name of KillLog with the playerKillCount criteria.
I want the system to detect when a player kills another player, which should add a value of 1 to the scoreboard. This system should then see that a player has killed another player, increase the world border by 10 blocks, and then reset the counter to 0 to reset the system, so it actively looks for another player to be killed again.
The system I have been fiddling with does absolutely nothing and I don't know why. I have removed redundancies, toggled the blocks to always on so they don't require redstone, watched hours of tutorials and I don't know where the problem is. Forgive me, I'm new and hope to make better stuff than this dumb system later on.
My problem is I must be believing something incorrectly about my system, but my limited knowledge and density of depth of command blocks makes it difficult to identify the problem. I believe the repeating block isn't actually testing for what I think it's doing, and since testfor doesn't exist anymore I'm at a loss.
*Edited for clarity and previous suggestions updated with pictures.