Description
This fractal sphere is an informationally hyperdense arcane formula from the void. You can decipher it with 1 hour of study.
Once deciphered, the sphere can be used to perform a 1-hour ritual, which up to three other spellcasters within 10 feet of the sphere can participate in. At the ritual's culmination, the sphere is destroyed, and each participant can expend one spell slot. You must make a DC 40 Intelligence (Arcana) check, with a bonus equal to the combined level of the expended spell slots.
On a success, choose a specific entity. Every sentient being in the timescape who didn't participate in the ritual loses all memory of the chosen entity, and the entity's name is erased from all records. On a failure, the GM chooses an entity to be erased. If the check fails by 10 or more, you and all participants are also erased and die.