Abu Ja'far
A 0/1 that punishes combat math by deleting everything that touched it in the air or on the ground, with no regeneration permitted. The design is a pure rattlesnake: the body invites a block or a swing-through, and the death trigger turns that exchange into a one-sided wipe of the participating creatures. The "can't be regenerated" clause does more historical work than a modern reader might notice; in the era this came from, regeneration was the default escape valve for fair green and black creatures, and shutting it off was the difference between a clean blowout and a whiffed trick. The structural cleverness is in how narrow the effect's scope is: it only kills creatures that blocked it or that it blocked, so this is not removal you point, it is removal you negotiate through the combat step. The opponent chooses whether to feed the trigger, and the fair price for that choice is whatever creature they were willing to lose plus everything else in the block. The 0/1 body is the cost of admission: it dies to anything, which is the entire point. As a piece of design vocabulary, its text box is a combat threat rather than a combat ability, and the lineage of deterrent-on-death small white creatures traces back through this slot.
