A sphere of shimmering force covered in glowing text encloses a Huge or smaller creature or object within range. If the target is an unwilling creature, it must make a Wisdom saving throw. On a failed save, the target is enclosed for the duration.   Nothing—not physical objects, energy, or other spell effects—can pass through the barrier, in or out, though a creature in the sphere can breathe there. The sphere is immune to all damage, and a creature or object inside can't be damaged by attacks or effects originating from outside, nor can a creature inside the sphere damage anything outside it. The sphere floats in mid-air, and does not move from the spot that it was created.   On subsequent turns, you can use an action to learn one of the following pieces of information about the target, which is written by shifting runes on the surface that only you can read:

• One damage immunity, resistance, or vulnerability.
• How it was created.
• One tale, myth, or legend about its exploits.
• One special feature or trait.
• The damage type and dice of its most damaging attack.
• Its age.
• If there are other objects or creatures of the same abilities (for objects) and species (for creatures), or if the target is unique.
• The origin of the materials used to create an object inside it. 

Every time you use an action to learn something new about an unwilling creature, it can repeat the save, ending the effect on itself on a success.   You can use this action a number of times equal to your spellcasting ability modifier (a minimum of once). After the final question, the spell ends, and the target cannot be affected by this spell for the next 24 hours.