After collecting the requests of all six people, Shen Jin went to the Tinkers' Construct Research Institute to make manyullyn weapons.
He enhanced these weapons.
This consumed a batch of his [redstone], [quartz], and [consecrated soil], along with a little of various other miscellaneous materials.
Fortunately, the system had not made Shen Jin obtain [nether quartz], which could only be found in the [Nether] in the original game. Ordinary [quartz] could enhance weapons, granting the [Sharpness] attribute and increasing attack power.
The [consecrated soil] material was particularly interesting. Enhancing weapons with it granted an attribute: [Zombie Killer].
When attacking zombies, it dealt extra damage and could kill large quantities of the zombie virus inside their bodies.
It was made by firing [graveyard soil].
The crafting recipe for [graveyard soil] was: [dirt] + [zombie rotten flesh] + [zombie bone meal].
If left unfired, [Graveyard soil] could increase the activity of zombies on top of it, speeding up their bodies' recovery.
"It can actually buff zombies? Good thing I'm not stupid. I'll fire it all into [consecrated soil]."
Besides being usable as an enhancement material, [Consecrated soil] was itself a block that could be placed.
When zombies stood on [consecrated soil], the zombie virus in them would be destroyed.
In other words, humans could step on it without any trouble, but zombies stepping onto it were like someone walking on a red-hot branding iron. Walk a little longer, and it would burn their feet to mush!
This could be called using zombies' bodies to fight zombies.
"This material is pretty good. It can serve as the Spikeweed in 'Plants vs. Zombie.' Although the damage isn't high, anything walking over it will get hurt. Spread it over a larger area, and even ordinary evolved zombies might burn to death before getting anywhere near