Shark Tooth Necklace

The Shark Tooth Necklace is an accessory which has a /  chance to drop from Blood Zombies and Dripplers found during a Blood Moon. It causes the player's attacks to ignore 5 points of their target's defense. This is equivalent to raising the damage of the player's attacks by 2 or 3, depending on the enemy's defense before this is factored in.

Tips

 * This item is very useful in pre-Hardmode and early Hardmode because it has a fixed armor penetration value, and can be dropped in any Blood Moon.
 * It is easier to get this item pre-Hardmode, since the new Hardmode spawns will displace some of the Dripplers and Blood Zombies that drop it.
 * Placing a Water Candle and/or using a Battle Potion during a Blood Moon can increase the spawn rates to help obtain it.
 * The Shark Tooth Necklace is great for overcoming the shortcomings of early high fire rate, low damage weapons such as the Minishark and the Bee Gun, which fall short when fighting high defense enemies. Raising damage from 10 damage per hit to 12 is equivalent to a 20% increase in damage. For example, Skeletron's Hands with 14 defense normally reduce Minishark + Musket Balls from 13 to 6 damage, but the Shark Tooth Necklace increases this to 8.5 damage (+42%)
 * This item can be used simultaneously with the to ignore 10 defense, rather than 5.

History
Collier de dent de requin 鲨牙项链