Corruption Egg

Corruption Egg came out of an egg, literally. The Sol's RNG Wiki lists it as a limited Easter 2025 aura with no defined rarity, dropped from the Corrupted Egg, and it is unobtainable since the event ended (the notice is dated 7 May 2025). Because there is no roll chance to speak of, nothing about luck applies. rocca108 made it.

When equipped, an egg floats above the player's head and purple smoke with streaks rises from its mouth. At the bottom of the egg sits a glowing purple dot from which three chains reach down to the player's head. The player has glowing purple eyes and stands in a cloud of purple smoke mixed with white particles, and a purple portal pulses beneath, with white dots flashing inside it. The wiki says the egg strongly resembles the Hive Mind boss from the Terraria Calamity Mod, and that its font is Kings. No in-game text is recorded for it.