Nepenthes as an ancient seed

This ancient plant, which is obviously found via sniffers, is a hazard for arthropods. It damages spiders, cave spiders, bees, and silverfish, it prevents spiders from spawning(affects creeper farm designs), and it attracts bees just to trap them and kill them. 

When sculk spreads to Nepenthes however, it mutates, and becomes a monster that attacks any mob that enters its reach. Villagers and iron golems run away from it, but for other mobs such as zombies... I'll let you imagine from now on.