Ice Tortoise

The Ice Tortoise is a Hardmode enemy which is found in the Ice biome cavern layer. It attacks by spinning inside its shell and jumping at the player, similarly to the Giant Tortoise and. It flies with high speed and accuracy, and deals moderate contact damage, making it dangerous to deal with for characters entering Hardmode.

Tips

 * Because Ice Tortoises emit a fair amount of light, they are comparably easy to spot. This also helps in revealing unexplored caves.
 * While the Ice Tortoise hides in its shell, it takes very little damage. The quickest way to defeat it is to attack it continuously so it cannot retreat into its shell. Furthermore, while it is stuck like this, it will be unable to jump at the player, making it easy to kill safely. Any auto-swing weapon or  can easily take it out. When attacking with melee weapons, using a weapon with high knockback will help keep it away.
 * Giant Tortoises and Ice Tortoises cannot drop through platforms. If you set up platforms along a underground Ice biome you can essentially farm them at ease.
 * The Crystal Vile Shard is useful when fighting Ice Tortoises, due to it's ability to hit through walls.
 * The Ice biome where these spawn has to be in the Cavern layer or lower

History
Tortue de glace Ледяная черепаха