Shield of Cthulhu

The Shield of Cthulhu is an Expert Mode accessory from the Treasure Bag dropped by the Eye of Cthulhu. Equipping it allows the player to perform a dash attack by double-tapping either the or  key. Dashing into an enemy deals 30 damage, and grants momentary invincibility.

Tips

 * You can use the Shield's dash to boost yourself to the maximum sprint speed provided by your sprinting accessories. This also works with the Unicorn Mount, if the mount is summoned immediately following the dash.
 * Getting this shield early and using the dash defensively will greatly increase your survivability during boss battles. It remains a very valuable defensive tool until replaced with the Tabi.

Trivia

 * If the Shield is equipped in a hidden accessory slot, it will still be visible while dashing.

History
Bouclier de Cthulhu