Sculkshroom

It is a mushroom with the skull texture. When it detects movement, it shakes violently. When it happens, it emmits a light level of 15, and drops to light level 0 within 150 ticks. Sculk sensors detect the movement of sculkshrooms. When you break it, you won't recieve the item, but instead would recieve 1-4 xp. Breaking it with silk touch would not give you xp, but will give you the sculkshroom itself. Sculkshrooms would only be placed on skulk. When a sculk catalyst spreads sculk blocks, sculkshrooms would grow along with them. The lighting coming from the sculkshroom won't be effected by the darkness effect. When you crouch next to a sculkshroom, it'll still emmit light, but won't shake, meaning it won't trigger the sculk sensors. Sculkshrooms will neither light up or shake when a warden is within 30 blocks of them. The idea is that they'd be scattered around the deep dark cities, along with sculk sensors and shriekers. The sculkshrooms would be a way to light up the cities around you, but you have to stay crouching, or else the warden would come and stop you from ever stepping foot in the cities again (of course, unless you're despirate).