Underground mushroom biome

It would be cool if there was a biome under the mushroom biome like a myceilium cave. It could have "infected" versions of regular hostile mobs that instead of hearing or seeing you, they "feel" you, when you touch a plant based block or infected mob, all the mobs in a 20 block radius target you for the next 10-30 seconds. There could be a new item or enchantment that when used/equipped, pacifies these mobs, or maybe even causes them to attack your attackers (like a dog does). It could be like a laurel wreath made of mushrooms, that could be upgraded with nether mushroom / the golden dandelion / creaking, giving unique effects for the upgrades, like the nether one repelling mobs scared of soul fire / warped fungi, or the creaking one giving a regen boost at night, but taking away daytime natural regen. Since it's made of fungi, it could repel arthropods, reflecting real life behavior of parasitic fungi