Purified Shards are typically the key to getting invested in Thorium's custom Healer class, although Unholy Shards are used more in "dark" equipment.
One Blood Moon is typically enough to craft most items requiring Purified Shards.
Tips[ | ]
Using a Blood Moon Medallion makes a Blood Moon happen immediately, allowing the player to obtain Purified Shards without having to wait for a Blood Moon to happen.