Magical Mushroom Bag

The Magical Mushroom Bag is a tool that is sold by the Druid in Hardmode. It allows the player to convert Mud Blocks into Mushroom Grass, as though they were using Mushroom Grass Seeds. This can be done indefinitely, as it costs mana rather than using the item, thus may prove useful in creating an artificial Glowing Mushroom biome without additional costs.

Trivia

 * Magic seed bags for Corruption, Crimson and Hallow likely do not exist as the source of the bags are the Druid NPC, who may be against the spread of evil.