You conjure a static, magical, half-spherical barrier around yourself with a 10-foot radius. When you cast this spell, you must be inside the barrier. You can only concentrate on it if you continuously occupy your hands with the required somatic components. If there is not enough space for the barrier to fully manifest, it stops forming upon reaching an obstacle. If space is limited, you can instead reduce the barrier’s radius to 5 feet.
The barrier is translucent and emits bright light in a 20-foot radius and dim light for an additional 20 feet. It is impassable by foot, as it physically occupies the space it surrounds. However, it can be traversed by magical means, such as teleportation, as long as the requirements of those spells are met (e.g., Misty Step still requires line of sight).
When you cast this spell, roll 2d8 + your spellcasting modifier to determine the barrier’s hit points. It has an AC of 8 + your spellcasting modifier, is immune to poison and psychic damage, and is vulnerable to force damage. If the barrier must make a Strength or Dexterity saving throw, you make the roll using your spellcasting ability adding your proficiency bonus.
The spell ends early if you leave the barrier, move from the space where you cast it, if it drops to 0 hit points, if you fail a Strength saving throw on its behalf, or if you use your hands for anything other than maintaining concentration.
A creature inside or outside the barrier must succeed on a Wisdom saving throw against your spell save DC to cast a spell that deals damage or harms a target or area on the opposite side of the barrier. On a failure, the spell fails, but the spell slot is still consumed.
Breathing creatures inside the barrier can survive up to a number of minutes equal to 20 divided by the number of creatures (minimum 1 minute), after which time they begin to suffocate.
At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, add 2d8 to the hit point roll for each slot level above 2nd. At 5th level, you can choose a damage type to grant the barrier resistance. If you choose force damage, the barrier does not gain resistance but loses its vulnerability to it.
* - (an eggshell)
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