Right now, I am spawning armor stands relative to the player's location to save the player's position and adding 1 to their
timeSaveTBT score every redstone tick. To make it so the player gets teleported back three seconds in time specifically, the armor stands are killed once the score reaches 30. When the player right clicks a fishing rod, the armor stands stop spawning and the player gets teleported to
@e[type=armor_stand,name=tracker,c=1] (the c=1 is the important part).
c=1 works in certain situations, but it doesn't work all the time. I need a relible way to select either the oldest armor stand with the name
ptracker or the armor stand with the smallest