Possesed Block

My idea is that some blocks being possesed by Deploro's curse thingy.THEY AREN'T MOBS!The blocks moves blocking trapping and annoying you.They move like blocks moved by pistons and they show a purple particle when touched or right clicked just like redstone.They are encontered in dungeons and rarely wandering alone.There is a 7% chance of when a enderman puts down a block,he dies and the block become possesed.In dungeons their movement can be pre-defined,used to create traps,like opening the floor below you making you fall in lava.When you mine the block they drop the original block and a "Corrupted Essence" that can be purified in the "Purifier" to create a "Pure Essence" and used o create other things.You can use the corrupted essence,together with seeds to create corrupted seeds,with a shapeless recipe with one essence and 8 seeds,to create 8 corrupted seeds.

Corrupted Essence Texture:

The only problem I see is that you can't effect blocks being moved. So you would need to stagger it's movement.

Yes,that is normal,so sometimes you will have to use blocks to stop then.And they don't always move,they are almost stopped.