Bladetongue

The Bladetongue is a Hardmode sword that has a 0.5% (1:200) chance of being caught while fishing in the Crimson. When it strikes an enemy, ichor streams are fired on an upwards arch, penetrating and damaging multiple enemies, bouncing against solid blocks, and applying the Ichor Debuff.

Its best Modifier is Legendary.

Trivia

 * It can be seen as the Crimson counterpart to the Corruption's Toxikarp. Both are weapons obtained through fishing in Hardmode in their corresponding biomes.
 * The Bladetongue fires its ichor projectile only when the sword hits an enemy, unlike most swords with projectiles.
 * May be a reference to the Blacktongue sword from the Diablo series. Blacktongue is a large, leaf bladed sword with a poison effect that also ignores a portion of enemy defense.

History
Langu'Épée 혓바늘