i have an idea for a item called, the bleeding heart, it's made by getting 1 crimson heart (the light pet) & 15 Vertebrae to craft, and you need to craft it at a crimson alter, once you have it, it can be used to trigger a blood moon at night, but in the day, it will do nothing. and the sprite looks like a heart with blood leaking, and pouring out of the arteries.