Guide:Obtaining a Terraprisma

The  is an aerial Hardmode post-Plantera summon weapon. It spawns a detached copy of itself that rapidly attacks nearby enemies. It is dropped from the Empress of Light only when all damage dealt to the Empress occurs during the day. At daytime, she is enraged, which causes all of her attacks to instantly kill the player and thus increase the difficulty of the boss itself

Spawning
In order to spawn the Empress of Light, you need to kill a. These creatures only spawn at Night in the Hallow. An easy way to ensure you deal all damage during the day is using a to catch the creature, and then release it during the day.

Differences between Night and Day
The Empress of Light will enrage if still alive or if summoned during the daytime, causing her attacks to do tens of thousands of damage, similar to the Dungeon Guardian, instantly killing players who are hit by her attacks. This enraged state is indicated by her attacks turning from rainbow to bright yellow.