For some reason or another, and this is not stated anywhere, traps gain extra range specifically when enemies are pulled or pushed nearby with most pushes/pulls, tested using a variety but the main one that makes the easiest is Pulling Shot, I can also confirm both repel and cold front's knockback types also work the exact same way.
I'm not sure why this occurs but as you can see, not changing the activation method other than by letting Prinny walk into it and then pulling shotting Prinny into it, the trap grows significantly in size.
This does not occur on any Knockback effect that makes the opponent simply take a step back like Warning Shot, Shotgun's KB or Warding Staff.
Steps to replicate:
1.) Lay down a trap (Ice/Entangle are easiest to see)
2.) Pull or Push someone near a trap by using anything but the skills I excluded above.
3.) Observe
I'm not sure why this occurs but as you can see, not changing the activation method other than by letting Prinny walk into it and then pulling shotting Prinny into it, the trap grows significantly in size.
This does not occur on any Knockback effect that makes the opponent simply take a step back like Warning Shot, Shotgun's KB or Warding Staff.
Steps to replicate:
1.) Lay down a trap (Ice/Entangle are easiest to see)
2.) Pull or Push someone near a trap by using anything but the skills I excluded above.
3.) Observe