Counterweights

A Counterweight is an accesory sold by the traveling merchant and the skeleton merchant for 5 gold. It shoots out a second damaging item after hitting an enemy with a yo-yo. It seems to be sold at a specific time, but it is unknown what time that is. Additionally, it is used to create a YoYo Bag. Six versions are known; red, green, blue, purple, black, and yellow.