just pick the redstone master kit and do what i did they dont see the pressure plate because its stone you can do the same with wood planks but it has to be oak wood i killed 2 people with this but i did not have to hit them myself
https://twitter.com/Jazzyjaykiller/status/736689502337564673?lang=en-gb
https://twitter.com/Jazzyjaykiller/status/736689502337564673?lang=en-gb