If the player is playing with the retro or trippy light settings, then the Murasama behaves as an immense source of light.

The Murasama only deals 40% damage to Ares and its weapons and 35% damage to Supreme Calamitas' Supreme Soul Seekers.

The Murasama will be automatically unlocked if the player's name is 'Jetstream Sam' or 'Samuel Rodrigues.'.

Its swing range is also fixed, despite the slashes appearing at varying distances.

The Murasama's attack speed is slower than what is visually indicated when using it, at 25 use time (2.4 swings per second).

As such, it also has the most range of all true melee weapons.

Despite not behaving like normal swords or spears, it is considered a true melee weapon.The exception to this rule is enemies that move through tiles.

The Murasama cannot attack through walls.The Murasama emits bright colored particles outward as it swings. Each slash deals the same amount of damage. The slashes appear in a set looping order: one large upward slash, one larger electrified upward slash, and then a slightly smaller downward slash. While being swung, large electric slashes will swing in the direction of the cursor, and any enemies that are hit by the slashes will take damage. It possesses a larger than normal critical strike chance. The locked Murasama can be unlocked with a colored gemstone at The Codebreaker once the Voltage Regulation System has been installed. A locked Murasama can be found in The Underworld's Bio-center Arsenal Lab, contained within a Security Chest. The Murasama is a pre- Hardmode melee weapon resembling a sword. 'It was tempered by the fires which are fueled by spirits, and formed in the magma I draw into my laboratories.' Not to be confused with Muramasa, a vanilla broadsword.

Calamity mod terraria