Blood Eel

The Blood Eel is a flying Hardmode enemy that can be spawned by fishing during a Blood Moon event. When the bobber dips and the player attempts to reel in a fish, a Blood Eel or another enemy has a chance to spawn within a few blocks of the bobber in place of a fish. Its behavior is rather similar to that of the Wyvern, though it moves considerably faster, It can fly through blocks.

Tips

 * As with any multi-segmented enemy, piercing and explosive weapons can strike multiple segments at once, dealing several times their normal damage.
 * Using a bow or repeater with Jester's Arrows or Holy Arrows is a good way to kill the Blood Eel.
 * Other useful items for killing Blood Eels and other worms are the Shotgun (with Explosive Bullets), the Nimbus Rod, the Crystal Vile Shard and the.
 * The Life Drain, obtained from Crimson Mimics, is also an extremely powerful choice, as it can suck life out of many segments as once.
 * The head of the Blood Eel has lower defense than its tail or body segments, making it more vulnerable to damage as it charges the player. However, the head also deals twice the damage as the rest of the body on contact, making it risky to face the Blood Eel head on.
 * The Blood Eel can be easily dodged using the Shield of Cthulhu. As the Eel comes in to attack, perform a dash away from or under the Eel to avoid being hit.
 * Flying in a straight line away from it with The Black Spot mount can make this fight considerably easier as the mount's top speed is just faster than the Eel, allowing you to shred it to pieces with piercing weapons without much fear of getting killed