Sophyra

The wiki gives Sophyra a clean number and very little else: Glorious tier, 1 in 570,000,000, no biome, no event. A player at 1x luck would expect 570 million rolls, and one with 10x luck about 57 million, so it sits just under Sloth and Sovereign in difficulty. It is listed as obtainable, but the row has no recorded release version, and WritePet is the credited creator.

The design is a sorcerer's study floating in space. The player hovers in a pose similar to Astral, with scattered planets drifting around, purple energy emanating from the body and rocks orbiting like in Gravitational. Behind the character floats a big purple book with a sigil on every page, and above the player a giant orb with several pulsing symbols; the book looks highlighted if you look closely. The current cutscene starts with a pink fog and a pink star that turn cyan, constellations appear around it, a sigil like those of Maelstrom and Lotusfall forms, and four eye-like symbols pop twice. An older cutscene is kept in the wiki. It has no active ability.