Ah, I see.
But couldn´t you just give us a list of code names so we can play the guessing game? 
If I may suggest something:
How about an alternative version of the exploding hopper that, instead of having the red/orange lava theme, has an Oortian theme (violet/pink highlights with Oortian glpyhs on the body) that instead of “just” blowing up stuff randomly scrambles all blocks inside the ‘explosion’ radius. Like this:
Before:
After:
The effect could trap player inside the structure so they would have to dig themselves out. To avoid block generation “inside” the player he/she could receive a good bit of damage if a block is generated on the location of a player instead of generating said block.