Imagine this:

Oh gee wilikers! There's a s̴̟̕ṕ̷̢̙̲̬̬̂̚o̴̢̰̯̲̐̚ǫ̨̨̛̐̐̅̉̿ḱ̷̷̛̟̱̄̚ŷ̩̮̝̿̿ ̫̩̟̝̰̝̓c̴̨̛̰̥̝r̴̨̢̭̈̓̄̅̆è̴̠̀̕à̴̷̫̩̬̇̈̉t̨̲̉ŭ̷̢̧̡̦̱̝̆̐̃r̴̴̴̢̳̙̪̄ę̷̷̳̙̄̚̕ infesting your minecraft world, and you can't seem to get it out! What are you supposed to do!?

get this mod to fix this very common bug ARG protagonists have. Seriously mine got snatched the other day because they didn't have this mod installed and explored a dark chasm in the middle of the world. I'm running out of them, can anyone send me more please?

There's 4 layers of security for failsafe.

layer 1

makes anything that isn't a vanilla mob unable to move when getting near you.

turns non-vanilla blocks into colorless grey blocks happens with all entities.

layer 2

disables AI for any non-vanilla mob when getting near you.

makes you immortal.

layer 3

despawns any non-vanilla entity that gets near you

layer 4

just despawns every non-vanilla entity

(you get an item to change the layer of security when you spawn, and respawn.)

Failsafe