Empress of Light

The Empress of Light is a Hallow boss. It is summoned by killing a Prismatic Lacewing at night in the Hallow. The Prismatic Lacewing will only spawn after Plantera has been defeated.

Strategy
The boss uses fast paced multicolor attacks. It would be wise to defeat Golem first, so the Cosmic Car Key will become available. It has two stages: In the first stage, it will alternate between homing attacks. In the second stage, the boss will draw lines across the screen and fire slicing projectiles down the lines.

Trivia

 * This boss was described as "a beautiful bullet hell" by Cenx before 1.4 was released.


 * If you are to take on this boss the moment it becomes available to you, it can be considered the hardest boss in the game, beating both the Moon Lord and Duke Fishron in difficulty.
 * Similar to Skeletron Prime, if she is fought during the day, all of her attacks will deal massive amounts of damage, killing the player instantly. However, unlike Skeletron Prime, if the Empress is killed during the day she will drop the Terraprisma, while Skeletron Prime has no additional drops.
 * It would be wise to batter the boss to very little health before daylight, then intentionally dragging the battle before finishing the boss, if one wishes to obtain the Terraprisma.