Wardshiper

Shaman's protection to all evils. It is used to have an area of 32x32x32 that will instantly kill one specified type of mob. To set the target you will have to do a ritual. Targets can only be monsters.

Wardshiper Target Ritual
First make a structure around the Wardshiper block made of 2 polished blackstone walls, a polished blackstone block and 4 warped fences like it is on the image. Attach an animal with a lead to each one of the warped fences, the average health of these mobs have to match at least a half of the target health. And then put a target above the Wardshiper. If all goes like planned, it will spread purple particles and all living entities will be sacrificed, Each 10 seconds have 25% chance to destroy any entity that matched the target in the Wardshiper.