well Mumbo Jumbo this is my version of the Ultimate PVP Defence Station. it is a bit diffrent then i think you will expect, i think at least.

recources needed:
2 slime blocks
1 button
40 dispencers
40 bukkets of lava (or flint and steal)
5 presure plates
alot of blocks (not burnable blocks!)
6 slabs
5 sticky pistons
12 obsidian
83 redstone (+/-)
35 repeaters (+/-)
27 redstone torches (+/-)
2 tripwire hooks
1 string

video: youtu.be/P0PLkIKz-VY