Superheated Blood

The Superheated Blood is a mount summon item that spawns a rideable Lava Shark. It is obtained by opening Obsidian Crates or Hellstone Crates found by fishing in lava.

Riding the mount will allow the player to swim quite quickly in lava without taking damage. It can also swim in water, but will not protect from drowning. It has a max speed of 73 mph in liquids and 11 mph on land.

The mount maintains its velocity in the air, allowing for jumps similar to while riding a minecart. When moving upwards or downwards, it tilts.

Trivia

 * When not in lava, the Lava Shark has saddened eyes.
 * The Mount item looks similar to the Vial of Blood